National Weather Service Forecast for: Montclair CA
Issued by: National Weather Service San Diego, CA
Updated: 12:29 pm PDT May 31, 2025
 
Tonight

Tonight: A slight chance of showers after 11pm.  Mostly cloudy, with a low around 65. West wind 5 to 10 mph.  Chance of precipitation is 20%.
Slight Chance
Showers
Sunday

Sunday: A slight chance of showers.  Mostly cloudy, with a high near 81. Light and variable wind becoming west 5 to 10 mph in the afternoon.  Chance of precipitation is 20%.
Slight Chance
Showers
Sunday
Night
Sunday Night: Partly cloudy, with a low around 60. Southwest wind 5 to 10 mph becoming light  after midnight. Winds could gust as high as 20 mph.
Partly Cloudy
Monday

Monday: Sunny, with a high near 79. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunny
Monday
Night
Monday Night: Mostly clear, with a low around 57. Southwest wind 5 to 10 mph becoming light  after midnight. Winds could gust as high as 20 mph.
Mostly Clear
Tuesday

Tuesday: Mostly sunny, with a high near 78.
Mostly Sunny
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 57.
Mostly Clear
Wednesday

Wednesday: Sunny, with a high near 80.
Sunny
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 58.
Mostly Clear
Lo 65 °F Hi 81 °F Lo 60 °F Hi 79 °F Lo 57 °F Hi 78 °F Lo 57 °F Hi 80 °F Lo 58 °F

Air Quality Alert
 

Tonight
 
A slight chance of showers after 11pm. Mostly cloudy, with a low around 65. West wind 5 to 10 mph. Chance of precipitation is 20%.
Sunday
 
A slight chance of showers. Mostly cloudy, with a high near 81. Light and variable wind becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 20%.
Sunday Night
 
Partly cloudy, with a low around 60. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Monday
 
Sunny, with a high near 79. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Monday Night
 
Mostly clear, with a low around 57. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Tuesday
 
Mostly sunny, with a high near 78.
Tuesday Night
 
Mostly clear, with a low around 57.
Wednesday
 
Sunny, with a high near 80.
Wednesday Night
 
Mostly clear, with a low around 58.
Thursday
 
Sunny, with a high near 83.
Thursday Night
 
Mostly clear, with a low around 59.
Friday
 
Sunny, with a high near 84.
Friday Night
 
Mostly clear, with a low around 59.
Saturday
 
Sunny, with a high near 84.

 

Forecast from NOAA-NWS for Montclair CA.