National Weather Service Forecast for: 6 Miles SW Portola Valley CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:25 am PST Dec 22, 2025
 
Today

Today: Rain. High near 61. South wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Rain
 Tonight

Tonight: Rain. Patchy fog between midnight and 2am. Low around 51. Light south wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain and
Patchy Fog
 Tuesday

Tuesday: Rain. High near 61. South southeast wind 8 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Rain
 Tuesday
Night
Tuesday Night: Rain. Low around 49. Breezy, with a south wind 16 to 22 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Rain and
Breezy
 Wednesday

Wednesday: Rain. High near 60. South wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Rain
 Wednesday
Night
Wednesday Night: Rain. Low around 50. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Rain
 Christmas
Day
Christmas Day: Rain. High near 58. Chance of precipitation is 100%.
Rain
 Thursday
Night
Thursday Night: Showers and possibly a thunderstorm. Cloudy, with a low around 47.
Showers
 Friday

Friday: Rain, mainly before 4pm. Mostly cloudy, with a high near 57.
Rain
Hi 61 °F Lo 51 °F Hi 61 °F Lo 49 °F Hi 60 °F Lo 50 °F Hi 58 °F Lo 47 °F Hi 57 °F

High Wind Watch
Flood Watch
 

Today
 
 Rain. High near 61. South wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
 
 Rain. Patchy fog between midnight and 2am. Low around 51. Light south wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
 
 Rain. High near 61. South southeast wind 8 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
 
 Rain. Low around 49. Breezy, with a south wind 16 to 22 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday
 
 Rain. High near 60. South wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
 
 Rain. Low around 50. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Christmas Day
 
 Rain. High near 58. Chance of precipitation is 100%.
Thursday Night
 
 Showers and possibly a thunderstorm. Cloudy, with a low around 47.
Friday
 
 Rain, mainly before 4pm. Mostly cloudy, with a high near 57.
Friday Night
 
 A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 42.
Saturday
 
 A slight chance of rain. Mostly sunny, with a high near 57.
Saturday Night
 
 Mostly clear, with a low around 41.
Sunday
 
 Mostly sunny, with a high near 58.

 

Forecast from NOAA-NWS for 6 Miles SW Portola Valley CA.