National Weather Service Forecast for: Tamalpais-homestead Valley CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:25 am PST Dec 22, 2025
 
Today

Today: Rain. Patchy fog after 2pm. High near 56. South wind 6 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Rain and
Patchy Fog
 Tonight

Tonight: Rain. Areas of fog. Low around 51. North wind 5 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Rain and
Areas Fog
 Tuesday

Tuesday: Rain. Areas of fog before 8am. High near 57. South southeast wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Rain and
Areas Fog
 Tuesday
Night
Tuesday Night: Rain. Low around 48. Breezy, with a south wind 23 to 29 mph, with gusts as high as 48 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Rain and
Breezy
 Wednesday

Wednesday: Rain, mainly before 4pm, then showers and possibly a thunderstorm after 4pm. High near 55. South southeast wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers
 Wednesday
Night
Wednesday Night: Showers and possibly a thunderstorm before 10pm, then rain after 10pm. Low around 50. Breezy. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Showers and
Breezy
 Christmas
Day
Christmas Day: Rain. High near 53. Breezy. Chance of precipitation is 100%.
Rain and
Breezy
 Thursday
Night
Thursday Night: Showers and possibly a thunderstorm before 4am, then rain and possibly a thunderstorm after 4am. Cloudy, with a low around 46.
Showers
 Friday

Friday: Rain, mainly before 4pm. Mostly cloudy, with a high near 53.
Rain
Hi 56 °F Lo 51 °F Hi 57 °F Lo 48 °F Hi 55 °F Lo 50 °F Hi 53 °F Lo 46 °F Hi 53 °F

Flood Watch
High Wind Watch
 

Today
 
 Rain. Patchy fog after 2pm. High near 56. South wind 6 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
 
 Rain. Areas of fog. Low around 51. North wind 5 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
 
 Rain. Areas of fog before 8am. High near 57. South southeast wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
 
 Rain. Low around 48. Breezy, with a south wind 23 to 29 mph, with gusts as high as 48 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday
 
 Rain, mainly before 4pm, then showers and possibly a thunderstorm after 4pm. High near 55. South southeast wind 9 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
 
 Showers and possibly a thunderstorm before 10pm, then rain after 10pm. Low around 50. Breezy. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Christmas Day
 
 Rain. High near 53. Breezy. Chance of precipitation is 100%.
Thursday Night
 
 Showers and possibly a thunderstorm before 4am, then rain and possibly a thunderstorm after 4am. Cloudy, with a low around 46.
Friday
 
 Rain, mainly before 4pm. Mostly cloudy, with a high near 53.
Friday Night
 
 A chance of rain, mainly before 10pm. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 42.
Saturday
 
 A slight chance of rain. Patchy fog. Otherwise, mostly sunny, with a high near 52.
Saturday Night
 
 Patchy fog. Otherwise, partly cloudy, with a low around 40.
Sunday
 
 Patchy fog. Otherwise, partly sunny, with a high near 51.

 

Forecast from NOAA-NWS for Tamalpais-homestead Valley CA.