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San Dimas, CA Weather Forecast | 10 Days

Updated: Sun Oct 18th 2026 2:00 PM PDT

Sun, 10-18

86°F
72°F

Mon, 10-19

84°F
71°F

Tue, 10-20

81°F
68°F

Wed, 10-21

79°F
62°F

Thu, 10-22

70°F
63°F

Fri, 10-23

72°F
61°F

Sat, 10-24

80°F
65°F

Sun, 10-25

83°F
69°F

Mon, 10-26

81°F
69°F

Tue, 10-27

79°F
67°F

Sunny

Sun 10-18

Sunny with a high of 86°F and a low of 72°F. Wind will be moderate, blowing around 11mph on average and gusts of 20.4mph at 4 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 37% at 11 PM and 15% being its lowest at 3 PM. Barometric pressure is its highest of 29.94^inHg at 10 PM, a lowest point of 29.89^inHg at 3 PM with an avg 29.91^inHg.

HI: 86°F
LO: 72°F

Rain: 0%
Snow: 0%

Wind
10.3 mph
Humidity
24% avg.

UV Index
5.9
Air Quality
Moderate

Sunrise
06:58 AM
Sunset
06:13 PM

Moonrise
02:27 PM
Moonset
Does not set today
Moon Phase
First Quarter

Hourly

Sunny

Mon 10-19

Sunny with a high of 84°F and a low of 71°F. There's a very small chance of rainfall, only about 1%. Winds will be light at 10mph and gusts of 20.8mph at 3 PM. Humidity levels should be comfortable, sitting around 36% on average, the maximum being 50% at 11 PM and 26% being its lowest at 1 PM. Barometric pressure is its highest of 29.93^inHg at 12 AM, a lowest point of 29.82^inHg at 4 PM with an avg 29.88^inHg.

HI: 84°F
LO: 71°F

Rain: 1%
Snow: 0%

Wind
9.8 mph
Humidity
36% avg.

UV Index
5.5
Air Quality
Moderate

Sunrise
06:59 AM
Sunset
06:12 PM

Moonrise
02:58 PM
Moonset
12:45 AM
Moon Phase
First Quarter

Hourly

Sunny

Tue 10-20

Sunny with a high of 81°F and a low of 68°F. There's a very small chance of rainfall, only about 2%. Wind will be moderate, blowing around 12mph on average and gusts of 22.4mph at 5 PM. Humidity levels should be comfortable, sitting around 51% on average, the maximum being 66% at 7 AM and 31% being its lowest at 2 PM. Barometric pressure is its highest of 29.89^inHg at 11 PM, a lowest point of 29.8^inHg at 4 PM with an avg 29.85^inHg.

HI: 81°F
LO: 68°F

Rain: 2%
Snow: 0%

Wind
11.2 mph
Humidity
51% avg.

UV Index
5.5
Air Quality
Moderate

Sunrise
07:00 AM
Sunset
06:11 PM

Moonrise
03:26 PM
Moonset
01:43 AM
Moon Phase
Waxing Gibbous

Hourly

Sunny

Wed 10-21

Sunny with a high of 79°F and a low of 62°F. Rainfall expected to have a 65% chance with an estimated 0.56in. Wind will be moderate, blowing around 17mph on average and gusts of 27.1mph at 5 PM. The humidity will be on the higher side, averaging about 61%, the maximum being 86% at 10 PM and 28% being its lowest at 2 PM. Barometric pressure is its highest of 29.92^inHg at 9 AM, a lowest point of 29.8^inHg at 3 PM with an avg 29.88^inHg.

HI: 79°F
LO: 62°F

Rain: 65% | est. 0.56in
Snow: 0%

Wind
17 mph
Humidity
61% avg.

UV Index
2.9
Air Quality
Moderate

Sunrise
07:01 AM
Sunset
06:10 PM

Moonrise
03:51 PM
Moonset
02:40 AM
Moon Phase
Waxing Gibbous

Hourly

Isolated Showers

Thu 10-22

Isolated Showers with a high of 70°F and a low of 63°F. Rainfall expected to have a 75% chance with an estimated 0.39in. Wind will be moderate, blowing around 12mph on average and gusts of 21.9mph at 3 PM. The humidity will be on the higher side, averaging about 62%, the maximum being 74% at 7 AM and 44% being its lowest at 3 PM. Barometric pressure is its highest of 29.96^inHg at 11 PM, a lowest point of 29.86^inHg at 4 AM with an avg 29.9^inHg.

HI: 70°F
LO: 63°F

Rain: 75% | est. 0.39in
Snow: 0%

Wind
11.9 mph
Humidity
62% avg.

UV Index
5
Air Quality
Good

Sunrise
07:02 AM
Sunset
06:09 PM

Moonrise
04:15 PM
Moonset
03:37 AM
Moon Phase
Waxing Gibbous

Hourly

Isolated Showers

Fri 10-23

Isolated Showers with a high of 72°F and a low of 61°F. There's a moderate 36% chance of rainfall with an estimated 0.03in. Winds will be light at 8mph and gusts of 17mph at 5 PM. Humidity levels should be comfortable, sitting around 59% on average, the maximum being 75% at 5 AM and 40% being its lowest at 5 PM. Barometric pressure is its highest of 30^inHg at 8 AM, a lowest point of 29.91^inHg at 5 PM with an avg 29.96^inHg.

HI: 72°F
LO: 61°F

Rain: 36% | est. 0.03in
Snow: 0%

Wind
7.2 mph
Humidity
59% avg.

UV Index
6
Air Quality
TBA

Sunrise
07:03 AM
Sunset
06:07 PM

Moonrise
04:40 PM
Moonset
04:34 AM
Moon Phase
Full Moon

Hourly

Sunny

Sat 10-24

Sunny with a high of 80°F and a low of 65°F. There's a very small chance of rainfall, only about 1%. Winds will be light at 7mph and gusts of 18.1mph at 5 PM. Humidity levels should be comfortable, sitting around 39% on average, the maximum being 61% at 2 AM and 22% being its lowest at 2 PM. Barometric pressure is its highest of 30^inHg at 11 AM, a lowest point of 29.92^inHg at 5 PM with an avg 29.96^inHg.

HI: 80°F
LO: 65°F

Rain: 1%
Snow: 0%

Wind
6.9 mph
Humidity
39% avg.

UV Index
7
Air Quality
TBA

Sunrise
07:03 AM
Sunset
06:06 PM

Moonrise
05:06 PM
Moonset
05:33 AM
Moon Phase
Full Moon

Hourly

Sunny

Sun 10-25

Sunny with a high of 83°F and a low of 69°F. Winds will be light at 10mph and gusts of 18.8mph at 5 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 34% at 11 PM and 14% being its lowest at 2 PM. Barometric pressure is its highest of 29.97^inHg at 12 AM, a lowest point of 29.85^inHg at 5 PM with an avg 29.92^inHg.

HI: 83°F
LO: 69°F

Rain: 0%
Snow: 0%

Wind
9.8 mph
Humidity
24% avg.

UV Index
7
Air Quality
TBA

Sunrise
07:04 AM
Sunset
06:05 PM

Moonrise
05:35 PM
Moonset
06:34 AM
Moon Phase
Full Moon

Hourly

Overcast

Mon 10-26

Overcast with a high of 81°F and a low of 69°F. There's a very small chance of rainfall, only about 4%. Winds will be light at 6mph and gusts of 14.8mph at 5 PM. The air will be relatively dry with average humidity levels below 30%, the maximum being 40% at 11 PM and 19% being its lowest at 5 PM. Barometric pressure is its highest of 29.9^inHg at 10 AM, a lowest point of 29.8^inHg at 5 PM with an avg 29.86^inHg.

HI: 81°F
LO: 69°F

Rain: 4%
Snow: 0%

Wind
5.8 mph
Humidity
29% avg.

UV Index
7
Air Quality
TBA

Sunrise
07:05 AM
Sunset
06:04 PM

Moonrise
06:09 PM
Moonset
07:38 AM
Moon Phase
Full Moon

Hourly

Overcast

Tue 10-27

Overcast with a high of 79°F and a low of 67°F. There's a very small chance of rainfall, only about 6%. Winds will be light at 9mph and gusts of 18.8mph at 2 PM. Humidity levels should be comfortable, sitting around 38% on average, the maximum being 53% at 11 PM and 23% being its lowest at 2 PM. Barometric pressure is its highest of 29.95^inHg at 11 PM, a lowest point of 29.86^inHg at 12 AM with an avg 29.89^inHg.

HI: 79°F
LO: 67°F

Rain: 6%
Snow: 0%

Wind
8.9 mph
Humidity
38% avg.

UV Index
7
Air Quality
TBA

Sunrise
07:06 AM
Sunset
06:03 PM

Moonrise
06:50 PM
Moonset
08:45 AM
Moon Phase
Waning Gibbous

Hourly

This 10-Day weather forecast is valid for ZIP code 91773, accurately covering the area of San Dimas, CA.

Currently

	85°F	29.91 inHg. Barometer 15% Humidity SW 8.3 mph Wind
Sunny

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