National Weather Service Forecast for: Fairfax CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:36 pm PDT Jul 12, 2026
 
Tonight

Tonight: Mostly cloudy, with a low around 59. Light west wind.
Mostly Cloudy
 Monday

Monday: Mostly cloudy, then gradually becoming sunny, with a high near 92. Calm wind becoming west around 5 mph in the afternoon.
Decreasing
Clouds
 Monday
Night
Monday Night: Mostly clear, with a low around 61. Light west southwest wind.
Mostly Clear
 Tuesday

Tuesday: Sunny, with a high near 93. Calm wind becoming west southwest around 6 mph in the afternoon.
Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 58. West wind 5 to 8 mph.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 89.
Sunny
 Wednesday
Night
Wednesday Night: Clear, with a low around 54.
Clear
 Thursday

Thursday: Sunny, with a high near 82.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 52.
Mostly Clear
Lo 59 °F Hi 92 °F Lo 61 °F Hi 93 °F Lo 58 °F Hi 89 °F Lo 54 °F Hi 82 °F Lo 52 °F

Coastal Flood Advisory
 

Tonight
 
 Mostly cloudy, with a low around 59. Light west wind.
Monday
 
 Mostly cloudy, then gradually becoming sunny, with a high near 92. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
 
 Mostly clear, with a low around 61. Light west southwest wind.
Tuesday
 
 Sunny, with a high near 93. Calm wind becoming west southwest around 6 mph in the afternoon.
Tuesday Night
 
 Mostly clear, with a low around 58. West wind 5 to 8 mph.
Wednesday
 
 Sunny, with a high near 89.
Wednesday Night
 
 Clear, with a low around 54.
Thursday
 
 Sunny, with a high near 82.
Thursday Night
 
 Mostly clear, with a low around 52.
Friday
 
 Mostly sunny, with a high near 76.
Friday Night
 
 Partly cloudy, with a low around 54.
Saturday
 
 Partly sunny, with a high near 77.
Saturday Night
 
 Partly cloudy, with a low around 56.
Sunday
 
 Partly sunny, with a high near 80.

 

Forecast from NOAA-NWS for Fairfax CA.