National Weather Service Forecast for: Fairfax CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 12:26 pm PST Feb 2, 2026
 
Tonight

Tonight: Mostly clear, with a low around 44. Calm wind.
Mostly Clear
 Tuesday

Tuesday: Sunny, with a high near 65. Calm wind becoming east northeast around 6 mph in the morning.
Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 46. Calm wind.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 66. East northeast wind 3 to 7 mph.
Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 47. Light east northeast wind.
Mostly Clear
 Thursday

Thursday: Mostly sunny, with a high near 65.
Mostly Sunny
 Thursday
Night
Thursday Night: Mostly cloudy, with a low around 50.
Mostly Cloudy
 Friday

Friday: Partly sunny, with a high near 64.
Partly Sunny
 Friday
Night
Friday Night: Partly cloudy, with a low around 49.
Partly Cloudy
Lo 44 °F Hi 65 °F Lo 46 °F Hi 66 °F Lo 47 °F Hi 65 °F Lo 50 °F Hi 64 °F Lo 49 °F

 

Tonight
 
 Mostly clear, with a low around 44. Calm wind.
Tuesday
 
 Sunny, with a high near 65. Calm wind becoming east northeast around 6 mph in the morning.
Tuesday Night
 
 Mostly clear, with a low around 46. Calm wind.
Wednesday
 
 Sunny, with a high near 66. East northeast wind 3 to 7 mph.
Wednesday Night
 
 Mostly clear, with a low around 47. Light east northeast wind.
Thursday
 
 Mostly sunny, with a high near 65.
Thursday Night
 
 Mostly cloudy, with a low around 50.
Friday
 
 Partly sunny, with a high near 64.
Friday Night
 
 Partly cloudy, with a low around 49.
Saturday
 
 Partly sunny, with a high near 62.
Saturday Night
 
 A slight chance of rain. Mostly cloudy, with a low around 49.
Sunday
 
 A chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 62.
Sunday Night
 
 A chance of rain. Mostly cloudy, with a low around 48.
Monday
 
 A chance of rain. Partly sunny, with a high near 58.

 

Forecast from NOAA-NWS for Fairfax CA.