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Saint Peters, PA Hourly Weather Forecast

Next 48 Hours

Wed, May 13th 2026

Scattered showers expected later. Rain forecasted to be scattered showers (up to 0.04in), light rain (up to 0.04in). Temps range from 57° to 69°. Breezy wind from the SSW at 12.8 mph, with humidity levels between 57% to 91%, and an avg barometric pressure of 29.78 inHg.
Wed, May 13th Temp Humidity Wind (mph) Pressure (inHg) Precip.
7 PM Scattered Showers at 7 PM on Wed, May 13th 2026
Scattered Showers
UV: 0.1
69°F

Feels
69°F
57% 11.6 SSW 29.78 100%
8 PM Scattered Showers at 8 PM on Wed, May 13th 2026
Scattered Showers
UV: 0
66°F

Feels
66°F
66% 13 S 29.78 100%

Rain est. 0.01in
9 PM Scattered Showers at 9 PM on Wed, May 13th 2026
Scattered Showers
UV: 0
60°F

Feels
58°F
72% 13.6 SSW 29.79 67%
10 PM Light Rain at 10 PM on Wed, May 13th 2026
Light Rain
UV: 0
58°F

Feels
56°F
91% 13.4 SSW 29.79 100%

Rain est. 0.04in
11 PM Scattered Showers at 11 PM on Wed, May 13th 2026
Scattered Showers
UV: 0
57°F

Feels
57°F
82% 12.3 SSW 29.78 100%

Rain est. 0.04in

Thu, May 14th 2026

Scattered showers skies will dominate from morning to night. Rain forecasted to be scattered showers (up to 0.00in). Temps range from 48° to 58°. Breezy wind, shifting from SW to NW at 9.7 mph, as humidity fluctuates between 52% to 92%, and an avg barometric pressure of 29.78 inHg.
Thu, May 14th Temp Humidity Wind (mph) Pressure (inHg) Precip.
12 AM Scattered Showers at 12 AM on Thu, May 14th 2026
Scattered Showers
UV: 0
56°F

Feels
56°F
83% 10.3 SW 29.78 87%
1 AM Scattered Showers at 1 AM on Thu, May 14th 2026
Scattered Showers
UV: 0
55°F

Feels
55°F
86% 9.6 SW 29.77 71%
2 AM Scattered Showers at 2 AM on Thu, May 14th 2026
Scattered Showers
UV: 0
55°F

Feels
55°F
88% 6.9 WNW 29.76 100%
3 AM Scattered Showers at 3 AM on Thu, May 14th 2026
Scattered Showers
UV: 0
54°F

Feels
54°F
89% 5.4 NW 29.76 84%
4 AM Partly Cloudy at 4 AM on Thu, May 14th 2026
Partly Cloudy
UV: 0
54°F

Feels
54°F
91% 5.6 WNW 29.77 0%
5 AM Overcast at 5 AM on Thu, May 14th 2026
Overcast
UV: 0
54°F

Feels
53°F
92% 6.3 NW 29.76 0%
6 AM Overcast at 6 AM on Thu, May 14th 2026
Overcast
UV: 0
50°F

Feels
48°F
90% 5.8 WNW 29.78 0%
7 AM Sunny at 7 AM on Thu, May 14th 2026
Sunny
UV: 0.3
50°F

Feels
47°F
91% 6.9 NW 29.79 0%
8 AM Sunny at 8 AM on Thu, May 14th 2026
Sunny
UV: 0.9
51°F

Feels
48°F
83% 8.9 NW 29.8 0%
9 AM Sunny at 9 AM on Thu, May 14th 2026
Sunny
UV: 2
53°F

Feels
50°F
68% 10.5 NW 29.81 0%
10 AM Partly Cloudy at 10 AM on Thu, May 14th 2026
Partly Cloudy
UV: 3.6
55°F

Feels
53°F
57% 9.8 NW 29.8 0%
11 AM Partly Cloudy at 11 AM on Thu, May 14th 2026
Partly Cloudy
UV: 5.2
57°F

Feels
55°F
53% 10.3 NW 29.78 0%
12 PM Partly Cloudy at 12 PM on Thu, May 14th 2026
Partly Cloudy
UV: 4.8
58°F

Feels
55°F
52% 11.2 WNW 29.76 0%
1 PM Scattered Showers at 1 PM on Thu, May 14th 2026
Scattered Showers
UV: 3.4
58°F

Feels
56°F
53% 11.9 WNW 29.76 60%
2 PM Scattered Showers at 2 PM on Thu, May 14th 2026
Scattered Showers
UV: 4.3
57°F

Feels
55°F
54% 12.3 WNW 29.75 82%
3 PM Scattered Showers at 3 PM on Thu, May 14th 2026
Scattered Showers
UV: 2.6
56°F

Feels
53°F
61% 12.8 WNW 29.75 72%
4 PM Scattered Showers at 4 PM on Thu, May 14th 2026
Scattered Showers
UV: 3.4
57°F

Feels
54°F
63% 11.9 WNW 29.75 77%
5 PM Scattered Showers at 5 PM on Thu, May 14th 2026
Scattered Showers
UV: 0.9
55°F

Feels
52°F
60% 12.1 WNW 29.74 75%
6 PM Cloudy at 6 PM on Thu, May 14th 2026
Cloudy
UV: 0.7
55°F

Feels
51°F
64% 10.7 WNW 29.76 0%
7 PM Scattered Showers at 7 PM on Thu, May 14th 2026
Scattered Showers
UV: 0.3
53°F

Feels
49°F
67% 10.3 WNW 29.77 80%
8 PM Partly Cloudy at 8 PM on Thu, May 14th 2026
Partly Cloudy
UV: 0
51°F

Feels
47°F
72% 12.3 WNW 29.8 0%
9 PM Partly Cloudy at 9 PM on Thu, May 14th 2026
Partly Cloudy
UV: 0
49°F

Feels
44°F
75% 11.2 WNW 29.81 0%
10 PM Partly Cloudy at 10 PM on Thu, May 14th 2026
Partly Cloudy
UV: 0
48°F

Feels
44°F
77% 10.3 NW 29.82 0%
11 PM Overcast at 11 PM on Thu, May 14th 2026
Overcast
UV: 0
49°F

Feels
44°F
76% 10.3 NW 29.81 0%

Fri, May 15th 2026

Expect consistent Overcast skies throughout the day. Rain forecasted to be scattered showers (up to 0.00in). Warming trend from 47°F to 62°. Breezy wind, shifting from NW to N at 11 mph, with humidity ranging 59% to 83%, and an avg barometric pressure of 29.87 inHg.
Fri, May 15th Temp Humidity Wind (mph) Pressure (inHg) Precip.
12 AM Overcast at 12 AM on Fri, May 15th 2026
Overcast
UV: 0
48°F

Feels
43°F
76% 11.6 NW 29.81 0%
1 AM Overcast at 1 AM on Fri, May 15th 2026
Overcast
UV: 0
48°F

Feels
43°F
80% 11.2 NW 29.81 0%
2 AM Overcast at 2 AM on Fri, May 15th 2026
Overcast
UV: 0
48°F

Feels
43°F
81% 11 NW 29.8 0%
3 AM Overcast at 3 AM on Fri, May 15th 2026
Overcast
UV: 0
47°F

Feels
42°F
82% 11.6 WNW 29.81 0%
4 AM Scattered Showers at 4 AM on Fri, May 15th 2026
Scattered Showers
UV: 0
47°F

Feels
42°F
83% 11.2 NW 29.81 66%
5 AM Overcast at 5 AM on Fri, May 15th 2026
Overcast
UV: 0
47°F

Feels
42°F
81% 10.3 NW 29.81 0%
6 AM Cloudy at 6 AM on Fri, May 15th 2026
Cloudy
UV: 0
47°F

Feels
42°F
80% 11 NW 29.84 0%
7 AM Cloudy at 7 AM on Fri, May 15th 2026
Cloudy
UV: 0.1
48°F

Feels
43°F
81% 10.5 NW 29.86 0%
8 AM Cloudy at 8 AM on Fri, May 15th 2026
Cloudy
UV: 0.5
50°F

Feels
46°F
78% 11.4 NW 29.87 0%
9 AM Overcast at 9 AM on Fri, May 15th 2026
Overcast
UV: 3
51°F

Feels
47°F
72% 13.2 NW 29.89 0%
10 AM Overcast at 10 AM on Fri, May 15th 2026
Overcast
UV: 3
52°F

Feels
48°F
72% 11.9 NW 29.9 0%
11 AM Overcast at 11 AM on Fri, May 15th 2026
Overcast
UV: 3
53°F

Feels
49°F
70% 12.3 NW 29.9 0%
12 PM Overcast at 12 PM on Fri, May 15th 2026
Overcast
UV: 3
56°F

Feels
52°F
70% 11.6 NW 29.91 0%
1 PM Scattered Showers at 1 PM on Fri, May 15th 2026
Scattered Showers
UV: 3
56°F

Feels
53°F
63% 13.2 NW 29.91 61%
2 PM Overcast at 2 PM on Fri, May 15th 2026
Overcast
UV: 3
57°F

Feels
55°F
68% 8.9 NNW 29.9 0%
3 PM Cloudy at 3 PM on Fri, May 15th 2026
Cloudy
UV: 3
60°F

Feels
59°F
66% 10.3 NNW 29.91 0%
4 PM Scattered Showers at 4 PM on Fri, May 15th 2026
Scattered Showers
UV: 4
62°F

Feels
61°F
59% 11 NNW 29.91 87%
5 PM Scattered Showers at 5 PM on Fri, May 15th 2026
Scattered Showers
UV: 4
62°F

Feels
62°F
60% 9.8 NNW 29.91 89%
6 PM Partly Cloudy at 6 PM on Fri, May 15th 2026
Partly Cloudy
UV: 5
62°F

Feels
61°F
65% 6.7 N 29.93 0%

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