National Weather Service Forecast for: San Dimas CA
Issued by: National Weather Service Los Angeles/Oxnard, CA
Updated: 8:13 pm PDT Jul 24, 2025
 
Tonight

Tonight: Increasing clouds, with a low around 58. Southwest wind around 5 mph becoming calm after midnight. Winds could gust as high as 15 mph.
Increasing
Clouds
 Friday

Friday: Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 79. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Patchy Fog
then Sunny
 Friday
Night
Friday Night: Increasing clouds, with a low around 57. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Increasing
Clouds
 Saturday

Saturday: Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 77. South wind 5 to 10 mph.
Patchy Fog
then Sunny
 Saturday
Night
Saturday Night: Mostly clear, with a low around 57. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Mostly Clear
 Sunday

Sunday: Sunny, with a high near 82.
Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 59.
Mostly Clear
 Monday

Monday: Sunny, with a high near 86.
Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 61.
Mostly Clear
Lo 58 °F Hi 79 °F Lo 57 °F Hi 77 °F Lo 57 °F Hi 82 °F Lo 59 °F Hi 86 °F Lo 61 °F

 

Tonight
 
 Increasing clouds, with a low around 58. Southwest wind around 5 mph becoming calm after midnight. Winds could gust as high as 15 mph.
Friday
 
 Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 79. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Friday Night
 
 Increasing clouds, with a low around 57. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday
 
 Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 77. South wind 5 to 10 mph.
Saturday Night
 
 Mostly clear, with a low around 57. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
 
 Sunny, with a high near 82.
Sunday Night
 
 Mostly clear, with a low around 59.
Monday
 
 Sunny, with a high near 86.
Monday Night
 
 Mostly clear, with a low around 61.
Tuesday
 
 Sunny, with a high near 89.
Tuesday Night
 
 Mostly clear, with a low around 62.
Wednesday
 
 Sunny, with a high near 90.
Wednesday Night
 
 Mostly clear, with a low around 63.
Thursday
 
 Sunny, with a high near 89.

 

Forecast from NOAA-NWS for San Dimas CA.