National Weather Service Forecast for: Montclair CA
Issued by: National Weather Service San Diego, CA
Updated: 10:18 am PDT May 26, 2026
 
Tonight

Tonight: Patchy drizzle after 2am. Increasing clouds, with a low around 52. Southwest wind 5 to 15 mph becoming southeast after midnight. Winds could gust as high as 20 mph.
Mostly Cloudy
then Patchy
Drizzle
 Wednesday

Wednesday: Patchy drizzle before 11am. Partly sunny, with a high near 65. East wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Patchy
Drizzle then
Partly Sunny
 Wednesday
Night
Wednesday Night: Patchy drizzle after 2am. Mostly cloudy, with a low around 51. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Mostly Cloudy
then Patchy
Drizzle
 Thursday

Thursday: Patchy drizzle before 11am. Mostly sunny, with a high near 68. Light south wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Patchy
Drizzle then
Mostly Sunny
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 52. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Partly Cloudy

 Friday

Friday: Mostly sunny, with a high near 72.
Mostly Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 54.
Mostly Clear

 Saturday

Saturday: Sunny, with a high near 79.
Sunny

 Saturday
Night
Saturday Night: Mostly clear, with a low around 56.
Mostly Clear
Lo 52 °F Hi 65 °F Lo 51 °F Hi 68 °F Lo 52 °F Hi 72 °F Lo 54 °F Hi 79 °F Lo 56 °F

 

Tonight
 
 Patchy drizzle after 2am. Increasing clouds, with a low around 52. Southwest wind 5 to 15 mph becoming southeast after midnight. Winds could gust as high as 20 mph.
Wednesday
 
 Patchy drizzle before 11am. Partly sunny, with a high near 65. East wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
 
 Patchy drizzle after 2am. Mostly cloudy, with a low around 51. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Thursday
 
 Patchy drizzle before 11am. Mostly sunny, with a high near 68. Light south wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
 
 Partly cloudy, with a low around 52. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Friday
 
 Mostly sunny, with a high near 72.
Friday Night
 
 Mostly clear, with a low around 54.
Saturday
 
 Sunny, with a high near 79.
Saturday Night
 
 Mostly clear, with a low around 56.
Sunday
 
 Sunny, with a high near 83.
Sunday Night
 
 Mostly clear, with a low around 58.
Monday
 
 Sunny, with a high near 86.
Monday Night
 
 Mostly clear, with a low around 60.
Tuesday
 
 Sunny, with a high near 88.

 

Forecast from NOAA-NWS for Montclair CA.