National Weather Service Forecast for: Montclair CA
Issued by: National Weather Service San Diego, CA
Updated: 8:59 pm PDT Jun 12, 2025
 
Tonight

Tonight: Mostly cloudy, with a low around 60. West wind around 5 mph.
Mostly Cloudy
 Friday

Friday: Mostly cloudy, then gradually becoming sunny, with a high near 84. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Decreasing
Clouds
 Friday
Night
Friday Night: Increasing clouds, with a low around 61. West wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 20 mph.
Increasing
Clouds
 Saturday

Saturday: Partly sunny, with a high near 89. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Partly Sunny
 Saturday
Night
Saturday Night: Partly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.
Partly Cloudy
 Sunday

Sunday: Mostly sunny, with a high near 91.
Mostly Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 64.
Mostly Clear
 Monday

Monday: Sunny, with a high near 88.
Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 62.
Mostly Clear
Lo 60 °F Hi 84 °F Lo 61 °F Hi 89 °F Lo 65 °F Hi 91 °F Lo 64 °F Hi 88 °F Lo 62 °F

 

Tonight
 
 Mostly cloudy, with a low around 60. West wind around 5 mph.
Friday
 
 Mostly cloudy, then gradually becoming sunny, with a high near 84. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
 
 Increasing clouds, with a low around 61. West wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 20 mph.
Saturday
 
 Partly sunny, with a high near 89. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Saturday Night
 
 Partly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.
Sunday
 
 Mostly sunny, with a high near 91.
Sunday Night
 
 Mostly clear, with a low around 64.
Monday
 
 Sunny, with a high near 88.
Monday Night
 
 Mostly clear, with a low around 62.
Tuesday
 
 Sunny, with a high near 87.
Tuesday Night
 
 Partly cloudy, with a low around 64.
Wednesday
 
 Mostly sunny, with a high near 90.
Wednesday Night
 
 Mostly clear, with a low around 65.
Juneteenth
 
 Sunny, with a high near 90.

 

Forecast from NOAA-NWS for Montclair CA.