National Weather Service Forecast for: Fairfax CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:26 am PDT Jun 22, 2026
 
Overnight

Overnight: Partly cloudy, with a low around 52. Light west southwest wind.
Partly Cloudy
Monday

Monday: Sunny, with a high near 74. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Sunny
Monday
Night
Monday Night: Increasing clouds, with a low around 53. West wind 5 to 7 mph becoming calm  after midnight.
Increasing
Clouds
Tuesday

Tuesday: Sunny, with a high near 75. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Sunny
Tuesday
Night
Tuesday Night: Mostly clear, with a low around 53. West southwest wind 5 to 7 mph becoming calm  in the evening.
Mostly Clear
Wednesday

Wednesday: Sunny, with a high near 76.
Sunny
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 54.
Mostly Clear
Thursday

Thursday: Sunny, with a high near 78.
Sunny
Thursday
Night
Thursday Night: Mostly clear, with a low around 55.
Mostly Clear
Lo 52 °F Hi 74 °F Lo 53 °F Hi 75 °F Lo 53 °F Hi 76 °F Lo 54 °F Hi 78 °F Lo 55 °F

 

Overnight
 
Partly cloudy, with a low around 52. Light west southwest wind.
Monday
 
Sunny, with a high near 74. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Monday Night
 
Increasing clouds, with a low around 53. West wind 5 to 7 mph becoming calm after midnight.
Tuesday
 
Sunny, with a high near 75. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Tuesday Night
 
Mostly clear, with a low around 53. West southwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
 
Sunny, with a high near 76.
Wednesday Night
 
Mostly clear, with a low around 54.
Thursday
 
Sunny, with a high near 78.
Thursday Night
 
Mostly clear, with a low around 55.
Friday
 
Sunny, with a high near 77.
Friday Night
 
Mostly clear, with a low around 57.
Saturday
 
Sunny, with a high near 76.
Saturday Night
 
Clear, with a low around 52.
Sunday
 
Sunny, with a high near 82.

 

Forecast from NOAA-NWS for Fairfax CA.