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Home / Local Weather & Traffic / Connecticut / Old Greenwich / Weather Forecast For 10 Days

Old Greenwich, CT Weather Forecast | 10 Days

Updated: Fri Oct 9th 2026 5:15 PM EDT
Fri, 10-9
10-9
70°F
58°F
Sat, 10-10
10-10
63°F
56°F
Sun, 10-11
10-11
64°F
60°F
Mon, 10-12
10-12
70°F
58°F
Tue, 10-13
10-13
75°F
61°F
Wed, 10-14
10-14
67°F
52°F
Thu, 10-15
10-15
57°F
47°F
Fri, 10-16
10-16
66°F
57°F
Sat, 10-17
10-17
65°F
52°F
Sun, 10-18
10-18
51°F
42°F

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10-9

Sunny

Fri 10-9

Sunny with a high of 70°F and a low of 58°F. There's a very small chance of rainfall, only about 4%. Wind will be moderate, blowing around 14mph on average and gusts of 17.5mph at 6 PM. Humidity levels should be comfortable, sitting around 49% on average, the maximum being 48% at 7 PM and 45% being its lowest at 6 PM. Barometric pressure is its highest of 30.26inHg at 10 PM, a lowest point of 30.17inHg at 6 PM with an avg 30.23inHg.

    • HI: 70°F
    • LO: 58°F
    • Rain: 4%
    • Snow: 0%
    • Wind
      13.2 mph
    • Humidity
      49% avg.
    • UV Index
      4.2
    • Air Quality
      Good
    • Sunrise
      06:59 AM
    • Sunset
      06:23 PM
    • Moonrise
      05:39 AM
    • Moonset
      05:38 PM
    • Moon Phase
      New Moon
  • Hourly
6 PM Overcast at 6 PM on Oct 9
Overcast
67°F
11%
rain
0%
snow
9.4 mph NW
wind
30.17 inHg
pressure
7 PM Overcast at 7 PM on Oct 9
Overcast
65°F
11%
rain
0%
snow
6.9 mph NNW
wind
30.2 inHg
pressure
8 PM Overcast at 8 PM on Oct 9
Overcast
64°F
11%
rain
0%
snow
5.1 mph NW
wind
30.22 inHg
pressure
9 PM Overcast at 9 PM on Oct 9
Overcast
63°F
11%
rain
0%
snow
4.3 mph WNW
wind
30.24 inHg
pressure
10 PM Overcast at 10 PM on Oct 9
Overcast
63°F
11%
rain
0%
snow
4 mph W
wind
30.26 inHg
pressure
11 PM Overcast at 11 PM on Oct 9
Overcast
63°F
11%
rain
0%
snow
4.5 mph W
wind
30.26 inHg
pressure
10-10

Overcast

Sat 10-10

Overcast with a high of 63°F and a low of 56°F. There might be light rainfall having a 11% chance. Winds will be light at 9mph and gusts of 16.6mph at 3 AM. Humidity levels should be comfortable, sitting around 51% on average, the maximum being 60% at 8 AM and 42% being its lowest at 5 PM. Barometric pressure is its highest of 30.49inHg at 9 PM, a lowest point of 30.28inHg at 12 AM with an avg 30.41inHg.

    • HI: 63°F
    • LO: 56°F
    • Rain: 11%
    • Snow: 0%
    • Wind
      8.7 mph
    • Humidity
      51% avg.
    • UV Index
      4.4
    • Air Quality
      Good
    • Sunrise
      07:00 AM
    • Sunset
      06:22 PM
    • Moonrise
      06:54 AM
    • Moonset
      06:03 PM
    • Moon Phase
      New Moon
  • Hourly
12 AM Overcast at 12 AM on Oct 10
Overcast
63°F
12%
rain
0%
snow
7.2 mph W
wind
30.28 inHg
pressure
1 AM Overcast at 1 AM on Oct 10
Overcast
61°F
11%
rain
0%
snow
8.7 mph WNW
wind
30.29 inHg
pressure
2 AM Overcast at 2 AM on Oct 10
Overcast
61°F
12%
rain
0%
snow
8.3 mph WNW
wind
30.3 inHg
pressure
3 AM Cloudy at 3 AM on Oct 10
Cloudy
60°F
10%
rain
0%
snow
8.7 mph NW
wind
30.31 inHg
pressure
4 AM Overcast at 4 AM on Oct 10
Overcast
59°F
12%
rain
0%
snow
8.1 mph NW
wind
30.31 inHg
pressure
5 AM Overcast at 5 AM on Oct 10
Overcast
58°F
13%
rain
0%
snow
8.1 mph NW
wind
30.33 inHg
pressure
6 AM Overcast at 6 AM on Oct 10
Overcast
58°F
13%
rain
0%
snow
7.4 mph NW
wind
30.35 inHg
pressure
7 AM Overcast at 7 AM on Oct 10
Overcast
57°F
14%
rain
0%
snow
7.4 mph NNW
wind
30.38 inHg
pressure
8 AM Cloudy at 8 AM on Oct 10
Cloudy
56°F
10%
rain
0%
snow
7.2 mph N
wind
30.41 inHg
pressure
9 AM Cloudy at 9 AM on Oct 10
Cloudy
57°F
10%
rain
0%
snow
7.2 mph NNE
wind
30.45 inHg
pressure
10 AM Overcast at 10 AM on Oct 10
Overcast
59°F
13%
rain
0%
snow
6.9 mph NNE
wind
30.46 inHg
pressure
11 AM Overcast at 11 AM on Oct 10
Overcast
60°F
12%
rain
0%
snow
6.7 mph NE
wind
30.45 inHg
pressure
12 PM Overcast at 12 PM on Oct 10
Overcast
62°F
11%
rain
0%
snow
4.5 mph NE
wind
30.48 inHg
pressure
1 PM Overcast at 1 PM on Oct 10
Overcast
63°F
11%
rain
0%
snow
2 mph ENE
wind
30.48 inHg
pressure
2 PM Overcast at 2 PM on Oct 10
Overcast
62°F
11%
rain
0%
snow
2.9 mph NE
wind
30.45 inHg
pressure
3 PM Overcast at 3 PM on Oct 10
Overcast
62°F
11%
rain
0%
snow
2.9 mph NE
wind
30.44 inHg
pressure
4 PM Overcast at 4 PM on Oct 10
Overcast
63°F
10%
rain
0%
snow
2.7 mph NE
wind
30.44 inHg
pressure
5 PM Overcast at 5 PM on Oct 10
Overcast
63°F
10%
rain
0%
snow
2.2 mph ENE
wind
30.45 inHg
pressure
6 PM Cloudy at 6 PM on Oct 10
Cloudy
63°F
9%
rain
0%
snow
3.4 mph E
wind
30.45 inHg
pressure
7 PM Cloudy at 7 PM on Oct 10
Cloudy
63°F
7%
rain
0%
snow
4.3 mph E
wind
30.47 inHg
pressure
8 PM Partly Cloudy at 8 PM on Oct 10
Partly Cloudy
62°F
5%
rain
0%
snow
4.9 mph ESE
wind
30.48 inHg
pressure
9 PM Overcast at 9 PM on Oct 10
Overcast
61°F
13%
rain
0%
snow
5.8 mph SE
wind
30.49 inHg
pressure
10 PM Overcast at 10 PM on Oct 10
Overcast
61°F
13%
rain
0%
snow
5.8 mph SE
wind
30.49 inHg
pressure
11 PM Overcast at 11 PM on Oct 10
Overcast
60°F
14%
rain
0%
snow
6.3 mph SE
wind
30.49 inHg
pressure
10-11

Overcast

Sun 10-11

Overcast with a high of 64°F and a low of 60°F. It will likey rain, having a 85% chance of a downpour with an estimated 0.5in. Winds will be strong at speeds peaking at 23mph and gusts of 32.3mph at 11 PM. The humidity will be on the higher side, averaging about 73%, the maximum being 96% at 11 PM and 59% being its lowest at 5 AM. Barometric pressure is its highest of 30.47inHg at 12 AM, a lowest point of 29.9inHg at 11 PM with an avg 30.28inHg.

    • HI: 64°F
    • LO: 60°F
    • Rain: 85% | est. 0.5in
    • Snow: 0%
    • Wind
      22.1 mph
    • Humidity
      73% avg.
    • UV Index
      1.9
    • Air Quality
      Moderate
    • Sunrise
      07:01 AM
    • Sunset
      06:20 PM
    • Moonrise
      08:09 AM
    • Moonset
      06:30 PM
    • Moon Phase
      New Moon
  • Hourly
12 AM Overcast at 12 AM on Oct 11
Overcast
60°F
14%
rain
0%
snow
6 mph SE
wind
30.47 inHg
pressure
1 AM Overcast at 1 AM on Oct 11
Overcast
60°F
14%
rain
0%
snow
6.9 mph ESE
wind
30.47 inHg
pressure
2 AM Overcast at 2 AM on Oct 11
Overcast
60°F
15%
rain
0%
snow
7.4 mph ESE
wind
30.46 inHg
pressure
3 AM Overcast at 3 AM on Oct 11
Overcast
60°F
15%
rain
0%
snow
7.2 mph ESE
wind
30.46 inHg
pressure
4 AM Overcast at 4 AM on Oct 11
Overcast
60°F
14%
rain
0%
snow
7.6 mph SE
wind
30.43 inHg
pressure
5 AM Overcast at 5 AM on Oct 11
Overcast
60°F
14%
rain
0%
snow
7.6 mph ESE
wind
30.43 inHg
pressure
6 AM Overcast at 6 AM on Oct 11
Overcast
60°F
15%
rain
0%
snow
8.1 mph E
wind
30.42 inHg
pressure
7 AM Overcast at 7 AM on Oct 11
Overcast
60°F
17%
rain
0%
snow
10.7 mph E
wind
30.4 inHg
pressure
8 AM Overcast at 8 AM on Oct 11
Overcast
61°F
17%
rain
0%
snow
10.3 mph ESE
wind
30.41 inHg
pressure
9 AM Overcast at 9 AM on Oct 11
Overcast
62°F
16%
rain
0%
snow
12.3 mph ESE
wind
30.4 inHg
pressure
10 AM Overcast at 10 AM on Oct 11
Overcast
62°F
16%
rain
0%
snow
13 mph ESE
wind
30.38 inHg
pressure
11 AM Overcast at 11 AM on Oct 11
Overcast
63°F
15%
rain
0%
snow
12.3 mph ESE
wind
30.36 inHg
pressure
12 PM Overcast at 12 PM on Oct 11
Overcast
64°F
15%
rain
0%
snow
12.3 mph ESE
wind
30.33 inHg
pressure
1 PM Patchy rain nearby at 1 PM on Oct 11
Patchy Rain Nearby
64°F
19%
rain
0%
snow
12.5 mph ESE
wind
30.3 inHg
pressure
2 PM Light drizzle at 2 PM on Oct 11
Light Drizzle
64°F
38%
Rain est. 0.01in
0%
snow
11.4 mph ESE
wind
30.25 inHg
pressure
3 PM Light drizzle at 3 PM on Oct 11
Light Drizzle
63°F
56%
Rain est. 0.02in
0%
snow
11.6 mph ESE
wind
30.21 inHg
pressure
4 PM Light rain at 4 PM on Oct 11
Light Rain
62°F
71%
Rain est. 0.05in
0%
snow
12.3 mph ESE
wind
30.19 inHg
pressure
5 PM Light rain at 5 PM on Oct 11
Light Rain
61°F
82%
Rain est. 0.1in
0%
snow
12.1 mph ESE
wind
30.17 inHg
pressure
6 PM Light rain at 6 PM on Oct 11
Light Rain
61°F
81%
Rain est. 0.08in
0%
snow
11.9 mph ESE
wind
30.14 inHg
pressure
7 PM Light rain at 7 PM on Oct 11
Light Rain
61°F
78%
Rain est. 0.06in
0%
snow
15.9 mph E
wind
30.09 inHg
pressure
8 PM Light rain at 8 PM on Oct 11
Light Rain
60°F
81%
Rain est. 0.07in
0%
snow
20.8 mph E
wind
30.04 inHg
pressure
9 PM Light rain at 9 PM on Oct 11
Light Rain
61°F
76%
Rain est. 0.04in
0%
snow
22.1 mph E
wind
29.99 inHg
pressure
10 PM Light rain at 10 PM on Oct 11
Light Rain
61°F
75%
Rain est. 0.04in
0%
snow
21.3 mph E
wind
29.95 inHg
pressure
11 PM Light rain at 11 PM on Oct 11
Light Rain
61°F
72%
Rain est. 0.03in
0%
snow
21.5 mph ENE
wind
29.9 inHg
pressure
10-12

Patchy Rain Nearby

Mon 10-12

Scattered Showers with a high of 70°F and a low of 58°F. Rainfall expected in the surrounding area to have a 64% chance with an estimated 0.07in. Winds will be strong at speeds peaking at 22mph and gusts of 32.2mph at 12 AM. High humidity with average of 83% is anticipated, the maximum being 97% at 2 AM and 65% being its lowest at 4 PM. Barometric pressure is its highest of 29.85inHg at 12 AM, a lowest point of 29.75inHg at 4 PM with an avg 29.78inHg.

    • HI: 70°F
    • LO: 58°F
    • Rain: 64% | est. 0.07in
    • Snow: 0%
    • Wind
      21.3 mph
    • Humidity
      83% avg.
    • UV Index
      4
    • Air Quality
      Good
    • Sunrise
      07:02 AM
    • Sunset
      06:18 PM
    • Moonrise
      09:23 AM
    • Moonset
      07:03 PM
    • Moon Phase
      Waxing Crescent
  • Hourly
12 AM Light drizzle at 12 AM on Oct 12
Light Drizzle
61°F
74%
Rain est. 0.03in
0%
snow
21.3 mph ENE
wind
29.85 inHg
pressure
1 AM Light drizzle at 1 AM on Oct 12
Light Drizzle
62°F
70%
Rain est. 0.02in
0%
snow
18.8 mph ENE
wind
29.82 inHg
pressure
2 AM Light drizzle at 2 AM on Oct 12
Light Drizzle
62°F
54%
Rain est. 0.01in
0%
snow
18.8 mph NE
wind
29.8 inHg
pressure
3 AM Patchy rain nearby at 3 AM on Oct 12
Patchy Rain Nearby
60°F
42%
rain
0%
snow
18.3 mph NNE
wind
29.79 inHg
pressure
4 AM Patchy rain nearby at 4 AM on Oct 12
Patchy Rain Nearby
59°F
36%
rain
0%
snow
17 mph NNE
wind
29.77 inHg
pressure
5 AM Patchy rain nearby at 5 AM on Oct 12
Patchy Rain Nearby
58°F
35%
rain
0%
snow
17.7 mph NNE
wind
29.77 inHg
pressure
6 AM Patchy rain nearby at 6 AM on Oct 12
Patchy Rain Nearby
58°F
35%
rain
0%
snow
16.8 mph NNE
wind
29.76 inHg
pressure
7 AM Patchy rain nearby at 7 AM on Oct 12
Patchy Rain Nearby
58°F
34%
rain
0%
snow
16.8 mph NNE
wind
29.75 inHg
pressure
8 AM Patchy rain nearby at 8 AM on Oct 12
Patchy Rain Nearby
58°F
41%
rain
0%
snow
13.9 mph NNE
wind
29.77 inHg
pressure
9 AM Patchy rain nearby at 9 AM on Oct 12
Patchy Rain Nearby
58°F
40%
rain
0%
snow
13.4 mph N
wind
29.79 inHg
pressure
10 AM Overcast at 10 AM on Oct 12
Overcast
59°F
28%
rain
0%
snow
13.4 mph NNE
wind
29.79 inHg
pressure
11 AM Partly Cloudy at 11 AM on Oct 12
Partly Cloudy
62°F
15%
rain
0%
snow
13.2 mph NNE
wind
29.77 inHg
pressure
12 PM Partly Cloudy at 12 PM on Oct 12
Partly Cloudy
65°F
9%
rain
0%
snow
11.6 mph NNE
wind
29.78 inHg
pressure
1 PM Partly Cloudy at 1 PM on Oct 12
Partly Cloudy
67°F
9%
rain
0%
snow
8.1 mph NNE
wind
29.77 inHg
pressure
2 PM Cloudy at 2 PM on Oct 12
Cloudy
69°F
11%
rain
0%
snow
7.2 mph N
wind
29.76 inHg
pressure
3 PM Cloudy at 3 PM on Oct 12
Cloudy
70°F
11%
rain
0%
snow
8.3 mph NNW
wind
29.75 inHg
pressure
4 PM Cloudy at 4 PM on Oct 12
Cloudy
70°F
11%
rain
0%
snow
9.6 mph NNW
wind
29.75 inHg
pressure
5 PM Sunny at 5 PM on Oct 12
Sunny
69°F
6%
rain
0%
snow
8.9 mph NW
wind
29.76 inHg
pressure
6 PM Sunny at 6 PM on Oct 12
Sunny
68°F
6%
rain
0%
snow
6.7 mph NW
wind
29.76 inHg
pressure
7 PM Clear at 7 PM on Oct 12
Clear
66°F
8%
rain
0%
snow
6 mph NW
wind
29.78 inHg
pressure
8 PM Clear at 8 PM on Oct 12
Clear
65°F
9%
rain
0%
snow
5.6 mph NNW
wind
29.8 inHg
pressure
9 PM Clear at 9 PM on Oct 12
Clear
65°F
9%
rain
0%
snow
5.4 mph NW
wind
29.81 inHg
pressure
10 PM Clear at 10 PM on Oct 12
Clear
64°F
10%
rain
0%
snow
4.7 mph WNW
wind
29.82 inHg
pressure
11 PM Clear at 11 PM on Oct 12
Clear
63°F
10%
rain
0%
snow
4.7 mph WNW
wind
29.83 inHg
pressure
10-13

Sunny

Tue 10-13

Sunny with a high of 75°F and a low of 61°F. There's a moderate 50% chance of rainfall with an estimated 0.04in. Wind will be moderate, blowing around 16mph on average and gusts of 27.3mph at 9 PM. The humidity will be on the higher side, averaging about 75%, the maximum being 87% at 11 PM and 60% being its lowest at 2 PM. Barometric pressure is its highest of 29.83inHg at 2 AM, a lowest point of 29.67inHg at 6 PM with an avg 29.75inHg.

    • HI: 75°F
    • LO: 61°F
    • Rain: 50% | est. 0.04in
    • Snow: 0%
    • Wind
      15.2 mph
    • Humidity
      75% avg.
    • UV Index
      6
    • Air Quality
      Good
    • Sunrise
      07:03 AM
    • Sunset
      06:17 PM
    • Moonrise
      10:35 AM
    • Moonset
      07:41 PM
    • Moon Phase
      Waxing Crescent
  • Hourly
12 AM Clear at 12 AM on Oct 13
Clear
63°F
10%
rain
0%
snow
3.4 mph WNW
wind
29.83 inHg
pressure
1 AM Clear at 1 AM on Oct 13
Clear
62°F
10%
rain
0%
snow
3.1 mph NW
wind
29.83 inHg
pressure
2 AM Clear at 2 AM on Oct 13
Clear
62°F
10%
rain
0%
snow
1.3 mph WNW
wind
29.83 inHg
pressure
3 AM Clear at 3 AM on Oct 13
Clear
62°F
11%
rain
0%
snow
2.7 mph W
wind
29.82 inHg
pressure
4 AM Clear at 4 AM on Oct 13
Clear
61°F
10%
rain
0%
snow
3.4 mph W
wind
29.81 inHg
pressure
5 AM Clear at 5 AM on Oct 13
Clear
61°F
10%
rain
0%
snow
4 mph WSW
wind
29.81 inHg
pressure
6 AM Clear at 6 AM on Oct 13
Clear
61°F
10%
rain
0%
snow
5.8 mph WSW
wind
29.81 inHg
pressure
7 AM Cloudy at 7 AM on Oct 13
Cloudy
61°F
17%
rain
0%
snow
6.7 mph SW
wind
29.81 inHg
pressure
8 AM Overcast at 8 AM on Oct 13
Overcast
62°F
22%
rain
0%
snow
8.3 mph SW
wind
29.81 inHg
pressure
9 AM Overcast at 9 AM on Oct 13
Overcast
64°F
19%
rain
0%
snow
10.1 mph SW
wind
29.81 inHg
pressure
10 AM Partly Cloudy at 10 AM on Oct 13
Partly Cloudy
66°F
10%
rain
0%
snow
11.9 mph SW
wind
29.8 inHg
pressure
11 AM Sunny at 11 AM on Oct 13
Sunny
68°F
5%
rain
0%
snow
13.2 mph SW
wind
29.79 inHg
pressure
12 PM Sunny at 12 PM on Oct 13
Sunny
71°F
6%
rain
0%
snow
14.3 mph SW
wind
29.77 inHg
pressure
1 PM Overcast at 1 PM on Oct 13
Overcast
73°F
15%
rain
0%
snow
14.8 mph SW
wind
29.74 inHg
pressure
2 PM Overcast at 2 PM on Oct 13
Overcast
74°F
14%
rain
0%
snow
15.2 mph SW
wind
29.71 inHg
pressure
3 PM Light drizzle at 3 PM on Oct 13
Light Drizzle
75°F
31%
Rain est. 0.01in
0%
snow
15 mph SW
wind
29.69 inHg
pressure
4 PM Overcast at 4 PM on Oct 13
Overcast
71°F
18%
rain
0%
snow
12.3 mph SW
wind
29.68 inHg
pressure
5 PM Overcast at 5 PM on Oct 13
Overcast
72°F
17%
rain
0%
snow
11.2 mph SW
wind
29.68 inHg
pressure
6 PM Patchy light drizzle at 6 PM on Oct 13
Patchy Light Drizzle
72°F
36%
Rain est. 0.01in
0%
snow
11 mph SW
wind
29.67 inHg
pressure
7 PM Patchy rain nearby at 7 PM on Oct 13
Patchy Rain Nearby
70°F
27%
rain
0%
snow
12.8 mph WSW
wind
29.68 inHg
pressure
8 PM Patchy rain nearby at 8 PM on Oct 13
Patchy Rain Nearby
71°F
21%
rain
0%
snow
14.3 mph SW
wind
29.68 inHg
pressure
9 PM Overcast at 9 PM on Oct 13
Overcast
70°F
21%
rain
0%
snow
15.2 mph WSW
wind
29.67 inHg
pressure
10 PM Light drizzle at 10 PM on Oct 13
Light Drizzle
69°F
47%
Rain est. 0.01in
0%
snow
13 mph WSW
wind
29.67 inHg
pressure
11 PM Overcast at 11 PM on Oct 13
Overcast
68°F
27%
rain
0%
snow
9.2 mph WSW
wind
29.67 inHg
pressure
10-14

Sunny

Wed 10-14

Sunny with a high of 67°F and a low of 52°F. There's a moderate 36% chance of rainfall with an estimated 0.03in. Wind will be moderate, blowing around 19mph on average and gusts of 26.7mph at 11 PM. The humidity will be on the higher side, averaging about 63%, the maximum being 89% at 12 AM and 45% being its lowest at 4 PM. Barometric pressure is its highest of 30.15inHg at 11 PM, a lowest point of 29.67inHg at 12 AM with an avg 29.92inHg.

    • HI: 67°F
    • LO: 52°F
    • Rain: 36% | est. 0.03in
    • Snow: 0%
    • Wind
      19 mph
    • Humidity
      63% avg.
    • UV Index
      5
    • Air Quality
      TBA
    • Sunrise
      07:04 AM
    • Sunset
      06:15 PM
    • Moonrise
      11:42 AM
    • Moonset
      08:26 PM
    • Moon Phase
      Waxing Crescent
  • Hourly
12 AM Light rain at 12 AM on Oct 14
Light Rain
67°F
68%
Rain est. 0.03in
0%
snow
9.4 mph W
wind
29.67 inHg
pressure
1 AM Overcast at 1 AM on Oct 14
Overcast
67°F
26%
rain
0%
snow
11.2 mph WNW
wind
29.68 inHg
pressure
2 AM Overcast at 2 AM on Oct 14
Overcast
65°F
24%
rain
0%
snow
14.1 mph WNW
wind
29.7 inHg
pressure
3 AM Clear at 3 AM on Oct 14
Clear
63°F
11%
rain
0%
snow
13.9 mph NW
wind
29.72 inHg
pressure
4 AM Patchy rain nearby at 4 AM on Oct 14
Patchy Rain Nearby
61°F
26%
rain
0%
snow
13.9 mph NW
wind
29.74 inHg
pressure
5 AM Patchy rain nearby at 5 AM on Oct 14
Patchy Rain Nearby
61°F
32%
rain
0%
snow
12.8 mph NNW
wind
29.76 inHg
pressure
6 AM Cloudy at 6 AM on Oct 14
Cloudy
59°F
17%
rain
0%
snow
12.5 mph NNW
wind
29.8 inHg
pressure
7 AM Patchy rain nearby at 7 AM on Oct 14
Patchy Rain Nearby
55°F
18%
rain
0%
snow
16.3 mph N
wind
29.84 inHg
pressure
8 AM Sunny at 8 AM on Oct 14
Sunny
53°F
8%
rain
0%
snow
16.3 mph N
wind
29.88 inHg
pressure
9 AM Sunny at 9 AM on Oct 14
Sunny
53°F
6%
rain
0%
snow
17.2 mph N
wind
29.9 inHg
pressure
10 AM Sunny at 10 AM on Oct 14
Sunny
54°F
4%
rain
0%
snow
18.1 mph N
wind
29.93 inHg
pressure
11 AM Sunny at 11 AM on Oct 14
Sunny
55°F
3%
rain
0%
snow
19 mph N
wind
29.95 inHg
pressure
12 PM Sunny at 12 PM on Oct 14
Sunny
56°F
2%
rain
0%
snow
18.1 mph N
wind
29.96 inHg
pressure
1 PM Sunny at 1 PM on Oct 14
Sunny
57°F
2%
rain
0%
snow
17.4 mph N
wind
29.96 inHg
pressure
2 PM Sunny at 2 PM on Oct 14
Sunny
59°F
1%
rain
0%
snow
16.6 mph NNW
wind
29.97 inHg
pressure
3 PM Sunny at 3 PM on Oct 14
Sunny
59°F
1%
rain
0%
snow
15.9 mph N
wind
29.98 inHg
pressure
4 PM Sunny at 4 PM on Oct 14
Sunny
59°F
1%
rain
0%
snow
15 mph N
wind
29.98 inHg
pressure
5 PM Sunny at 5 PM on Oct 14
Sunny
60°F
1%
rain
0%
snow
14.3 mph N
wind
30 inHg
pressure
6 PM Sunny at 6 PM on Oct 14
Sunny
58°F
2%
rain
0%
snow
14.5 mph WSW
wind
30.03 inHg
pressure
7 PM Clear at 7 PM on Oct 14
Clear
57°F
2%
rain
0%
snow
14.5 mph ESE
wind
30.06 inHg
pressure
8 PM Clear at 8 PM on Oct 14
Clear
56°F
2%
rain
0%
snow
14.8 mph N
wind
30.09 inHg
pressure
9 PM Clear at 9 PM on Oct 14
Clear
54°F
2%
rain
0%
snow
14.5 mph N
wind
30.11 inHg
pressure
10 PM Clear at 10 PM on Oct 14
Clear
53°F
3%
rain
0%
snow
14.5 mph N
wind
30.13 inHg
pressure
11 PM Clear at 11 PM on Oct 14
Clear
52°F
3%
rain
0%
snow
14.3 mph N
wind
30.15 inHg
pressure
10-15

Sunny

Thu 10-15

Sunny with a high of 57°F and a low of 47°F. There's a very small chance of rainfall, only about 7%. Wind will be moderate, blowing around 15mph on average and gusts of 26.4mph at 12 AM. Humidity levels should be comfortable, sitting around 55% on average, the maximum being 63% at 6 AM and 47% being its lowest at 11 AM. Barometric pressure is its highest of 30.32inHg at 11 AM, a lowest point of 30.16inHg at 12 AM with an avg 30.27inHg.

    • HI: 57°F
    • LO: 47°F
    • Rain: 7%
    • Snow: 0%
    • Wind
      14.1 mph
    • Humidity
      55% avg.
    • UV Index
      4
    • Air Quality
      TBA
    • Sunrise
      07:05 AM
    • Sunset
      06:14 PM
    • Moonrise
      12:42 PM
    • Moonset
      09:19 PM
    • Moon Phase
      Waxing Crescent
  • Hourly
12 AM Clear at 12 AM on Oct 15
Clear
51°F
3%
rain
0%
snow
14.1 mph ESE
wind
30.16 inHg
pressure
1 AM Clear at 1 AM on Oct 15
Clear
51°F
3%
rain
0%
snow
14.1 mph WSW
wind
30.18 inHg
pressure
2 AM Clear at 2 AM on Oct 15
Clear
50°F
3%
rain
0%
snow
13.9 mph N
wind
30.19 inHg
pressure
3 AM Clear at 3 AM on Oct 15
Clear
49°F
4%
rain
0%
snow
12.1 mph WSW
wind
30.21 inHg
pressure
4 AM Clear at 4 AM on Oct 15
Clear
48°F
4%
rain
0%
snow
10.3 mph ESE
wind
30.22 inHg
pressure
5 AM Clear at 5 AM on Oct 15
Clear
48°F
4%
rain
0%
snow
8.5 mph N
wind
30.23 inHg
pressure
6 AM Clear at 6 AM on Oct 15
Clear
48°F
4%
rain
0%
snow
8.1 mph N
wind
30.25 inHg
pressure
7 AM Clear at 7 AM on Oct 15
Clear
48°F
4%
rain
0%
snow
7.8 mph N
wind
30.27 inHg
pressure
8 AM Sunny at 8 AM on Oct 15
Sunny
47°F
4%
rain
0%
snow
7.4 mph N
wind
30.28 inHg
pressure
9 AM Cloudy at 9 AM on Oct 15
Cloudy
49°F
5%
rain
0%
snow
6 mph N
wind
30.29 inHg
pressure
10 AM Sunny at 10 AM on Oct 15
Sunny
51°F
6%
rain
0%
snow
4.7 mph NNE
wind
30.31 inHg
pressure
11 AM Cloudy at 11 AM on Oct 15
Cloudy
53°F
7%
rain
0%
snow
3.4 mph NNE
wind
30.32 inHg
pressure
12 PM Overcast at 12 PM on Oct 15
Overcast
53°F
9%
rain
0%
snow
3.4 mph NE
wind
30.31 inHg
pressure
1 PM Cloudy at 1 PM on Oct 15
Cloudy
54°F
11%
rain
0%
snow
3.1 mph ENE
wind
30.31 inHg
pressure
2 PM Overcast at 2 PM on Oct 15
Overcast
54°F
12%
rain
0%
snow
3.1 mph ESE
wind
30.3 inHg
pressure
3 PM Cloudy at 3 PM on Oct 15
Cloudy
54°F
11%
rain
0%
snow
3.4 mph ESE
wind
30.29 inHg
pressure
4 PM Overcast at 4 PM on Oct 15
Overcast
55°F
10%
rain
0%
snow
3.6 mph ESE
wind
30.29 inHg
pressure
5 PM Cloudy at 5 PM on Oct 15
Cloudy
55°F
9%
rain
0%
snow
3.8 mph E
wind
30.28 inHg
pressure
6 PM Overcast at 6 PM on Oct 15
Overcast
56°F
10%
rain
0%
snow
5.6 mph SE
wind
30.29 inHg
pressure
7 PM Cloudy at 7 PM on Oct 15
Cloudy
57°F
11%
rain
0%
snow
7.4 mph SSE
wind
30.3 inHg
pressure
8 PM Overcast at 8 PM on Oct 15
Overcast
57°F
12%
rain
0%
snow
9.2 mph S
wind
30.31 inHg
pressure
9 PM Overcast at 9 PM on Oct 15
Overcast
57°F
12%
rain
0%
snow
9.2 mph SSE
wind
30.31 inHg
pressure
10 PM Overcast at 10 PM on Oct 15
Overcast
57°F
13%
rain
0%
snow
9.4 mph SSE
wind
30.3 inHg
pressure
11 PM Overcast at 11 PM on Oct 15
Overcast
56°F
13%
rain
0%
snow
9.4 mph SSE
wind
30.3 inHg
pressure
10-16

Overcast

Fri 10-16

Overcast with a high of 66°F and a low of 57°F. Rainfall expected to have a 66% chance with an estimated 0.07in. Winds will be strong at speeds peaking at 23mph and gusts of 38mph at 8 PM. The humidity will be on the higher side, averaging about 76%, the maximum being 86% at 8 AM and 59% being its lowest at 12 AM. Barometric pressure is its highest of 30.29inHg at 12 AM, a lowest point of 29.93inHg at 11 PM with an avg 30.11inHg.

    • HI: 66°F
    • LO: 57°F
    • Rain: 66% | est. 0.07in
    • Snow: 0%
    • Wind
      22.4 mph
    • Humidity
      76% avg.
    • UV Index
      5
    • Air Quality
      TBA
    • Sunrise
      07:07 AM
    • Sunset
      06:12 PM
    • Moonrise
      01:32 PM
    • Moonset
      10:18 PM
    • Moon Phase
      First Quarter
  • Hourly
12 AM Overcast at 12 AM on Oct 16
Overcast
57°F
14%
rain
0%
snow
8.7 mph SSE
wind
30.29 inHg
pressure
1 AM Overcast at 1 AM on Oct 16
Overcast
57°F
16%
rain
0%
snow
8.3 mph SSE
wind
30.28 inHg
pressure
2 AM Overcast at 2 AM on Oct 16
Overcast
57°F
18%
rain
0%
snow
7.6 mph S
wind
30.27 inHg
pressure
3 AM Patchy rain nearby at 3 AM on Oct 16
Patchy Rain Nearby
58°F
19%
rain
0%
snow
7.8 mph S
wind
30.25 inHg
pressure
4 AM Overcast at 4 AM on Oct 16
Overcast
59°F
20%
rain
0%
snow
7.8 mph S
wind
30.24 inHg
pressure
5 AM Patchy rain nearby at 5 AM on Oct 16
Patchy Rain Nearby
59°F
26%
rain
0%
snow
8.1 mph S
wind
30.22 inHg
pressure
6 AM Light drizzle at 6 AM on Oct 16
Light Drizzle
59°F
39%
Rain est. 0.01in
0%
snow
10.5 mph S
wind
30.21 inHg
pressure
7 AM Patchy rain nearby at 7 AM on Oct 16
Patchy Rain Nearby
59°F
54%
Rain est. 0.02in
0%
snow
12.8 mph S
wind
30.2 inHg
pressure
8 AM Light drizzle at 8 AM on Oct 16
Light Drizzle
59°F
66%
Rain est. 0.02in
0%
snow
15.2 mph S
wind
30.19 inHg
pressure
9 AM Patchy rain nearby at 9 AM on Oct 16
Patchy Rain Nearby
60°F
55%
Rain est. 0.02in
0%
snow
15.7 mph S
wind
30.18 inHg
pressure
10 AM Light drizzle at 10 AM on Oct 16
Light Drizzle
60°F
41%
Rain est. 0.01in
0%
snow
16.1 mph S
wind
30.17 inHg
pressure
11 AM Patchy rain nearby at 11 AM on Oct 16
Patchy Rain Nearby
61°F
25%
rain
0%
snow
16.6 mph SSW
wind
30.15 inHg
pressure
12 PM Overcast at 12 PM on Oct 16
Overcast
63°F
22%
rain
0%
snow
17.7 mph SSW
wind
30.12 inHg
pressure
1 PM Patchy rain nearby at 1 PM on Oct 16
Patchy Rain Nearby
64°F
20%
rain
0%
snow
18.8 mph SSW
wind
30.09 inHg
pressure
2 PM Overcast at 2 PM on Oct 16
Overcast
66°F
17%
rain
0%
snow
19.9 mph SSW
wind
30.06 inHg
pressure
3 PM Partly Cloudy at 3 PM on Oct 16
Partly Cloudy
66°F
15%
rain
0%
snow
20.1 mph SSW
wind
30.04 inHg
pressure
4 PM Overcast at 4 PM on Oct 16
Overcast
66°F
12%
rain
0%
snow
20.6 mph SSW
wind
30.02 inHg
pressure
5 PM Partly Cloudy at 5 PM on Oct 16
Partly Cloudy
66°F
11%
rain
0%
snow
20.8 mph SSW
wind
30 inHg
pressure
6 PM Partly Cloudy at 6 PM on Oct 16
Partly Cloudy
66°F
12%
rain
0%
snow
21.3 mph SSW
wind
29.99 inHg
pressure
7 PM Partly Cloudy at 7 PM on Oct 16
Partly Cloudy
65°F
14%
rain
0%
snow
21.9 mph SSW
wind
29.98 inHg
pressure
8 PM Partly Cloudy at 8 PM on Oct 16
Partly Cloudy
65°F
16%
rain
0%
snow
22.4 mph SSW
wind
29.96 inHg
pressure
9 PM Clear at 9 PM on Oct 16
Clear
65°F
14%
rain
0%
snow
21.3 mph SSW
wind
29.95 inHg
pressure
10 PM Partly Cloudy at 10 PM on Oct 16
Partly Cloudy
65°F
12%
rain
0%
snow
20.4 mph SSW
wind
29.94 inHg
pressure
11 PM Clear at 11 PM on Oct 16
Clear
65°F
11%
rain
0%
snow
19.2 mph SSW
wind
29.93 inHg
pressure
10-17

Overcast

Sat 10-17

Overcast with a high of 65°F and a low of 52°F. There's a moderate 36% chance of rainfall with an estimated 0.01in. Wind will be moderate, blowing around 19mph on average and gusts of 34.9mph at 12 AM. The humidity will be on the higher side, averaging about 65%, the maximum being 86% at 3 AM and 42% being its lowest at 5 PM. Barometric pressure is its highest of 30.01inHg at 11 PM, a lowest point of 29.81inHg at 5 AM with an avg 29.9inHg.

    • HI: 65°F
    • LO: 52°F
    • Rain: 36% | est. 0.01in
    • Snow: 0%
    • Wind
      19 mph
    • Humidity
      65% avg.
    • UV Index
      5
    • Air Quality
      TBA
    • Sunrise
      07:08 AM
    • Sunset
      06:11 PM
    • Moonrise
      02:12 PM
    • Moonset
      11:20 PM
    • Moon Phase
      First Quarter
  • Hourly
12 AM Patchy rain nearby at 12 AM on Oct 17
Patchy Rain Nearby
65°F
14%
rain
0%
snow
19 mph SSW
wind
29.9 inHg
pressure
1 AM Clear at 1 AM on Oct 17
Clear
65°F
24%
rain
0%
snow
19 mph SSW
wind
29.88 inHg
pressure
2 AM Patchy rain nearby at 2 AM on Oct 17
Patchy Rain Nearby
65°F
30%
Rain est. 0.01in
0%
snow
18.8 mph SSW
wind
29.86 inHg
pressure
3 AM Overcast at 3 AM on Oct 17
Overcast
65°F
31%
rain
0%
snow
18.8 mph SSW
wind
29.84 inHg
pressure
4 AM Patchy rain nearby at 4 AM on Oct 17
Patchy Rain Nearby
65°F
24%
rain
0%
snow
18.6 mph SW
wind
29.82 inHg
pressure
5 AM Overcast at 5 AM on Oct 17
Overcast
65°F
26%
rain
0%
snow
18.6 mph SW
wind
29.81 inHg
pressure
6 AM Overcast at 6 AM on Oct 17
Overcast
63°F
22%
rain
0%
snow
17.7 mph WSW
wind
29.83 inHg
pressure
7 AM Overcast at 7 AM on Oct 17
Overcast
61°F
18%
rain
0%
snow
17 mph W
wind
29.85 inHg
pressure
8 AM Overcast at 8 AM on Oct 17
Overcast
59°F
15%
rain
0%
snow
16.1 mph WNW
wind
29.87 inHg
pressure
9 AM Overcast at 9 AM on Oct 17
Overcast
58°F
15%
rain
0%
snow
15.2 mph WNW
wind
29.88 inHg
pressure
10 AM Overcast at 10 AM on Oct 17
Overcast
57°F
15%
rain
0%
snow
14.1 mph WNW
wind
29.88 inHg
pressure
11 AM Overcast at 11 AM on Oct 17
Overcast
56°F
15%
rain
0%
snow
13.2 mph WNW
wind
29.89 inHg
pressure
12 PM Overcast at 12 PM on Oct 17
Overcast
55°F
15%
rain
0%
snow
13 mph WNW
wind
29.89 inHg
pressure
1 PM Overcast at 1 PM on Oct 17
Overcast
54°F
15%
rain
0%
snow
12.5 mph W
wind
29.9 inHg
pressure
2 PM Overcast at 2 PM on Oct 17
Overcast
53°F
16%
rain
0%
snow
12.3 mph W
wind
29.9 inHg
pressure
3 PM Sunny at 3 PM on Oct 17
Sunny
56°F
8%
rain
0%
snow
12.5 mph W
wind
29.9 inHg
pressure
4 PM Overcast at 4 PM on Oct 17
Overcast
58°F
4%
rain
0%
snow
12.8 mph W
wind
29.89 inHg
pressure
5 PM Sunny at 5 PM on Oct 17
Sunny
61°F
1%
rain
0%
snow
13 mph W
wind
29.89 inHg
pressure
6 PM Sunny at 6 PM on Oct 17
Sunny
59°F
1%
rain
0%
snow
13 mph W
wind
29.91 inHg
pressure
7 PM Clear at 7 PM on Oct 17
Clear
58°F
2%
rain
0%
snow
13.2 mph W
wind
29.94 inHg
pressure
8 PM Clear at 8 PM on Oct 17
Clear
57°F
2%
rain
0%
snow
13.2 mph W
wind
29.96 inHg
pressure
9 PM Partly Cloudy at 9 PM on Oct 17
Partly Cloudy
55°F
3%
rain
0%
snow
11.9 mph WNW
wind
29.98 inHg
pressure
10 PM Clear at 10 PM on Oct 17
Clear
54°F
5%
rain
0%
snow
10.5 mph NW
wind
30 inHg
pressure
11 PM Partly Cloudy at 11 PM on Oct 17
Partly Cloudy
52°F
8%
rain
0%
snow
9.2 mph NNW
wind
30.01 inHg
pressure
10-18

Sunny

Sun 10-18

Sunny with a high of 51°F and a low of 42°F. There's a very small chance of rainfall, only about 8%. Wind will be moderate, blowing around 16mph on average and gusts of 23.1mph at 11 PM. The humidity will be on the higher side, averaging about 62%, the maximum being 72% at 8 AM and 53% being its lowest at 5 PM. Barometric pressure is its highest of 30.38inHg at 11 PM, a lowest point of 30.02inHg at 12 AM with an avg 30.18inHg.

    • HI: 51°F
    • LO: 42°F
    • Rain: 8%
    • Snow: 0%
    • Wind
      15.9 mph
    • Humidity
      62% avg.
    • UV Index
      4
    • Air Quality
      TBA
    • Sunrise
      07:09 AM
    • Sunset
      06:09 PM
    • Moonrise
      02:45 PM
    • Moonset
      Does not set today
    • Moon Phase
      First Quarter
  • Hourly
12 AM Clear at 12 AM on Oct 18
Clear
51°F
6%
rain
0%
snow
9.8 mph NNW
wind
30.02 inHg
pressure
1 AM Partly Cloudy at 1 AM on Oct 18
Partly Cloudy
51°F
5%
rain
0%
snow
10.5 mph NW
wind
30.03 inHg
pressure
2 AM Clear at 2 AM on Oct 18
Clear
50°F
4%
rain
0%
snow
11.2 mph NW
wind
30.03 inHg
pressure
3 AM Clear at 3 AM on Oct 18
Clear
49°F
5%
rain
0%
snow
11 mph NW
wind
30.04 inHg
pressure
4 AM Clear at 4 AM on Oct 18
Clear
48°F
5%
rain
0%
snow
10.5 mph NW
wind
30.05 inHg
pressure
5 AM Clear at 5 AM on Oct 18
Clear
48°F
6%
rain
0%
snow
10.3 mph WNW
wind
30.06 inHg
pressure
6 AM Clear at 6 AM on Oct 18
Clear
47°F
6%
rain
0%
snow
11 mph NW
wind
30.08 inHg
pressure
7 AM Clear at 7 AM on Oct 18
Clear
47°F
7%
rain
0%
snow
11.4 mph NW
wind
30.1 inHg
pressure
8 AM Sunny at 8 AM on Oct 18
Sunny
46°F
7%
rain
0%
snow
12.1 mph NW
wind
30.12 inHg
pressure
9 AM Partly Cloudy at 9 AM on Oct 18
Partly Cloudy
48°F
6%
rain
0%
snow
11.2 mph NW
wind
30.14 inHg
pressure
10 AM Sunny at 10 AM on Oct 18
Sunny
50°F
6%
rain
0%
snow
10.3 mph NW
wind
30.15 inHg
pressure
11 AM Partly Cloudy at 11 AM on Oct 18
Partly Cloudy
51°F
6%
rain
0%
snow
9.4 mph NNW
wind
30.17 inHg
pressure
12 PM Patchy rain nearby at 12 PM on Oct 18
Patchy Rain Nearby
51°F
8%
rain
0%
snow
11.2 mph NNW
wind
30.18 inHg
pressure
1 PM Partly Cloudy at 1 PM on Oct 18
Partly Cloudy
50°F
12%
rain
0%
snow
12.8 mph NNW
wind
30.19 inHg
pressure
2 PM Patchy rain nearby at 2 PM on Oct 18
Patchy Rain Nearby
49°F
19%
rain
0%
snow
14.5 mph N
wind
30.2 inHg
pressure
3 PM Overcast at 3 PM on Oct 18
Overcast
49°F
14%
rain
0%
snow
13.6 mph N
wind
30.22 inHg
pressure
4 PM Patchy rain nearby at 4 PM on Oct 18
Patchy Rain Nearby
50°F
13%
rain
0%
snow
13 mph NNW
wind
30.23 inHg
pressure
5 PM Overcast at 5 PM on Oct 18
Overcast
50°F
11%
rain
0%
snow
12.1 mph NNW
wind
30.25 inHg
pressure
6 PM Sunny at 6 PM on Oct 18
Sunny
49°F
7%
rain
0%
snow
13.4 mph NNW
wind
30.28 inHg
pressure
7 PM Overcast at 7 PM on Oct 18
Overcast
47°F
5%
rain
0%
snow
14.5 mph N
wind
30.31 inHg
pressure
8 PM Clear at 8 PM on Oct 18
Clear
46°F
3%
rain
0%
snow
15.9 mph N
wind
30.33 inHg
pressure
9 PM Clear at 9 PM on Oct 18
Clear
45°F
3%
rain
0%
snow
15.9 mph N
wind
30.35 inHg
pressure
10 PM Clear at 10 PM on Oct 18
Clear
44°F
3%
rain
0%
snow
15.9 mph N
wind
30.37 inHg
pressure
11 PM Clear at 11 PM on Oct 18
Clear
42°F
4%
rain
0%
snow
15.9 mph N
wind
30.38 inHg
pressure

This 10-Day weather forecast is valid for ZIP code 06870, accurately covering the area of Old Greenwich, CT.

Currently

Overcast 68°F
30.14 inHg.
Barometer
42%
Humidity
NW 16.6 mph
Wind
Overcast
Full Report

National Outlook

Hurricane Isaias Impacting the Gulf Coast; Heavy Rains Expected in Southern California - 10-09 to 10-11

Fri Oct 9th 2026, 1:30am PDT
Read

Heavy Rain and Record Heat Expected 10-12 to 10-16

Extended Forecast
Fri Oct 9th 2026, 1:32am PDT
Read

Weather Forecast Nearby

Riverside, CT
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Connecticut

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