NWS Forecast for San Anselmo CA

National Weather Service Forecast for: San Anselmo CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA

Updated: 1:40 am PST Dec 5, 2025

Overnight Partly Cloudy	Friday Mostly Sunny	Friday Night Mostly Clear then Patchy Fog	Saturday Patchy Fog then Sunny	Saturday Night Partly Cloudy	Sunday Mostly Sunny	Sunday Night Partly Cloudy	Monday Mostly Sunny	Monday Night Partly Cloudy
Lo 40 °F	Hi 60 °F	Lo 45 °F	Hi 62 °F	Lo 47 °F	Hi 65 °F	Lo 46 °F	Hi 64 °F	Lo 48 °F

Coastal Flood Advisory
Cold Weather Advisory

Overnight	Partly cloudy, with a low around 40. Light north wind.
Friday	Mostly sunny, with a high near 60. Light and variable wind.
Friday Night	Patchy fog after 5am. Otherwise, partly cloudy, with a low around 45. West wind around 6 mph becoming calm after midnight.
Saturday	Patchy fog before 7am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 62. Light north northwest wind.
Saturday Night	Partly cloudy, with a low around 47. Northwest wind 5 to 8 mph.
Sunday	Mostly sunny, with a high near 65.
Sunday Night	Partly cloudy, with a low around 46.
Monday	Mostly sunny, with a high near 64.
Monday Night	Partly cloudy, with a low around 48.
Tuesday	Mostly sunny, with a high near 66.
Tuesday Night	Partly cloudy, with a low around 49.
Wednesday	Patchy fog. Otherwise, mostly sunny, with a high near 67.
Wednesday Night	Patchy fog. Otherwise, mostly clear, with a low around 49.
Thursday	Patchy fog. Otherwise, mostly sunny, with a high near 66.

Forecast from NOAA-NWS for San Anselmo CA.