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San Anselmo, CA Marine Weather Forecast

Tonight - 46°F
Feb 14, 2026
3 mph SW
Mostly Cloudy then Patchy Fog
Patchy fog after 4am. Mostly cloudy, with a low around 46. Southwest wind around 3 mph.
Saturday - 57°F
Feb 14, 2026
2 to 8 mph SSW
Patchy Fog then Mostly Cloudy
Patchy fog before 9am. Mostly cloudy, with a high near 57. South southwest wind 2 to 8 mph.
Saturday Night - 50°F
Feb 14, 2026
9 mph S
Rain Showers Likely
Rain showers likely. Mostly cloudy, with a low around 50. South wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday - 57°F
Feb 15, 2026
10 mph SSE
Rain Showers
Rain showers. Cloudy, with a high near 57. South southeast wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night - 47°F
Feb 15, 2026
6 to 9 mph SE
Rain Showers
Rain showers. Cloudy, with a low around 47. Southeast wind 6 to 9 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Washington's Birthday - 53°F
Feb 16, 2026
6 to 12 mph SE
Rain Showers
Rain showers before 4pm, then showers and thunderstorms. Cloudy, with a high near 53. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Monday Night - 44°F
Feb 16, 2026
14 mph WSW
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a low around 44.
Tuesday - 51°F
Feb 17, 2026
14 mph WSW
Showers And Thunderstorms
Showers and thunderstorms. Cloudy, with a high near 51.
Tuesday Night - 42°F
Feb 17, 2026
6 to 12 mph SW
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a low around 42.
Wednesday - 52°F
Feb 18, 2026
6 to 9 mph WNW
Rain Showers Likely
Rain showers likely. Mostly cloudy, with a high near 52.
Wednesday Night - 40°F
Feb 18, 2026
6 to 9 mph WNW
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a low around 40.
Thursday - 54°F
Feb 19, 2026
8 mph NNW
Rain Showers Likely
Rain showers likely. Partly sunny, with a high near 54.
Thursday Night - 42°F
Feb 19, 2026
8 mph WNW
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a low around 42.
Friday - 55°F
Feb 20, 2026
8 mph NW
Chance Rain Showers
A chance of rain showers before 5pm. Partly sunny, with a high near 55.

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