National Weather Service Forecast for: 3 Miles WNW Portola Valley CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:26 pm PDT Jun 19, 2026
 
Tonight

Tonight: Partly cloudy, with a low around 55. Southwest wind 5 to 7 mph becoming calm after midnight.
Partly Cloudy
 Saturday

Saturday: Partly sunny, then gradually becoming sunny, with a high near 71. Calm wind becoming west southwest around 6 mph in the afternoon.
Becoming
Sunny
 Saturday
Night
Saturday Night: Partly cloudy, with a low around 51. West southwest wind around 5 mph becoming calm in the evening.
Partly Cloudy
 Sunday

Sunday: Sunny, with a high near 74. Light west wind.
Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 52. West wind around 5 mph becoming calm in the evening.
Mostly Clear
 Monday

Monday: Sunny, with a high near 76.
Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 54.
Mostly Clear
 Tuesday

Tuesday: Mostly sunny, with a high near 78.
Mostly Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 54.
Mostly Clear
Lo 55 °F Hi 71 °F Lo 51 °F Hi 74 °F Lo 52 °F Hi 76 °F Lo 54 °F Hi 78 °F Lo 54 °F

 

Tonight
 
 Partly cloudy, with a low around 55. Southwest wind 5 to 7 mph becoming calm after midnight.
Saturday
 
 Partly sunny, then gradually becoming sunny, with a high near 71. Calm wind becoming west southwest around 6 mph in the afternoon.
Saturday Night
 
 Partly cloudy, with a low around 51. West southwest wind around 5 mph becoming calm in the evening.
Sunday
 
 Sunny, with a high near 74. Light west wind.
Sunday Night
 
 Mostly clear, with a low around 52. West wind around 5 mph becoming calm in the evening.
Monday
 
 Sunny, with a high near 76.
Monday Night
 
 Mostly clear, with a low around 54.
Tuesday
 
 Mostly sunny, with a high near 78.
Tuesday Night
 
 Mostly clear, with a low around 54.
Wednesday
 
 Sunny, with a high near 80.
Wednesday Night
 
 Mostly clear, with a low around 55.
Thursday
 
 Sunny, with a high near 79.
Thursday Night
 
 Mostly clear, with a low around 54.
Friday
 
 Sunny, with a high near 77.

 

Forecast from NOAA-NWS for 3 Miles WNW Portola Valley CA.