National Weather Service Forecast for: 2 Miles SE Portola Valley CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 11:55 pm PST Dec 22, 2025
 
Overnight

Overnight: A 30 percent chance of rain. Areas of fog. Otherwise, cloudy, with a low around 51. South wind 5 to 7 mph.
Chance Rain
and Areas Fog

 Tuesday

Tuesday: Rain likely, mainly after 4pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 58. South wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 43 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
and Patchy
Fog then Rain
Likely
 Tuesday
Night
Tuesday Night: Rain. Low around 50. Breezy, with a south wind 14 to 19 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 60 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Rain and
Breezy

 Wednesday

Wednesday: Rain, mainly before 4pm, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe. Patchy fog between 9am and 10am. High near 57. South wind 7 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Rain and
Patchy Fog
then Severe
T-Storms
 Wednesday
Night
Wednesday Night: Showers and possibly a thunderstorm before 7pm, then rain after 7pm. Some of the storms could be severe. Low around 49. Breezy, with a south southeast wind 20 to 22 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Breezy.
Severe
T-Storms
then Rain
 Christmas
Day
Christmas Day: Showers and possibly a thunderstorm. High near 53. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Showers

 Thursday
Night
Thursday Night: Rain before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then rain after 1am. Low around 45. Chance of precipitation is 100%.
Showers

 Friday

Friday: Rain. Cloudy, with a high near 53.
Rain

 Friday
Night
Friday Night: Rain likely, mainly before 10pm. Mostly cloudy, with a low around 43.
Rain Likely
Lo 51 °F Hi 58 °F Lo 50 °F Hi 57 °F Lo 49 °F Hi 53 °F Lo 45 °F Hi 53 °F Lo 43 °F

Flood Watch
Wind Advisory
 

Overnight
 
 A 30 percent chance of rain. Areas of fog. Otherwise, cloudy, with a low around 51. South wind 5 to 7 mph.
Tuesday
 
 Rain likely, mainly after 4pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 58. South wind 7 to 12 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 43 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
 
 Rain. Low around 50. Breezy, with a south wind 14 to 19 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 60 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Wednesday
 
 Rain, mainly before 4pm, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe. Patchy fog between 9am and 10am. High near 57. South wind 7 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
 
 Showers and possibly a thunderstorm before 7pm, then rain after 7pm. Some of the storms could be severe. Low around 49. Breezy, with a south southeast wind 20 to 22 mph, with gusts as high as 44 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Christmas Day
 
 Showers and possibly a thunderstorm. High near 53. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
 
 Rain before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then rain after 1am. Low around 45. Chance of precipitation is 100%.
Friday
 
 Rain. Cloudy, with a high near 53.
Friday Night
 
 Rain likely, mainly before 10pm. Mostly cloudy, with a low around 43.
Saturday
 
 A slight chance of rain before 10am. Patchy fog before 10am. Otherwise, mostly sunny, with a high near 53.
Saturday Night
 
 Mostly clear, with a low around 38.
Sunday
 
 Sunny, with a high near 53.
Sunday Night
 
 Mostly clear, with a low around 39.
Monday
 
 Mostly sunny, with a high near 55.

 

Forecast from NOAA-NWS for 2 Miles SE Portola Valley CA.