National Weather Service Forecast for: 3 Miles ESE Montclair CA
Issued by: National Weather Service San Diego, CA
Updated: 11:14 am PDT Mar 19, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 99. West wind 5 to 10 mph.
Sunny
Tonight

Tonight: Clear, with a low around 67. West wind 5 to 10 mph becoming light and variable  in the evening.
Clear
Friday

Friday: Sunny, with a high near 97. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Sunny
Friday
Night
Friday Night: Clear, with a low around 65. West wind 5 to 10 mph becoming light and variable  in the evening.
Clear
Saturday

Saturday: Sunny, with a high near 91. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Sunny
Saturday
Night
Saturday Night: Mostly cloudy, with a low around 62.
Mostly Cloudy
Sunday

Sunday: Mostly sunny, with a high near 89.
Mostly Sunny
Sunday
Night
Sunday Night: Mostly clear, with a low around 62.
Mostly Clear
Monday

Monday: Sunny, with a high near 90.
Sunny
Hi 99 °F Lo 67 °F Hi 97 °F Lo 65 °F Hi 91 °F Lo 62 °F Hi 89 °F Lo 62 °F Hi 90 °F

Heat Advisory
 

This Afternoon
 
Sunny, with a high near 99. West wind 5 to 10 mph.
Tonight
 
Clear, with a low around 67. West wind 5 to 10 mph becoming light and variable in the evening.
Friday
 
Sunny, with a high near 97. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Friday Night
 
Clear, with a low around 65. West wind 5 to 10 mph becoming light and variable in the evening.
Saturday
 
Sunny, with a high near 91. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
 
Mostly cloudy, with a low around 62.
Sunday
 
Mostly sunny, with a high near 89.
Sunday Night
 
Mostly clear, with a low around 62.
Monday
 
Sunny, with a high near 90.
Monday Night
 
Mostly clear, with a low around 62.
Tuesday
 
Sunny, with a high near 91.
Tuesday Night
 
Mostly clear, with a low around 63.
Wednesday
 
Sunny, with a high near 91.

 

Forecast from NOAA-NWS for 3 Miles ESE Montclair CA.