National Weather Service Forecast for: Portola Valley CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:27 pm PDT Jun 2, 2025
 
This
Afternoon
This Afternoon: Sunny, with a high near 77. North wind around 7 mph becoming west southwest.
Sunny
 Tonight

Tonight: Mostly clear, with a low around 49. Southwest wind 5 to 11 mph.
Mostly Clear
 Tuesday

Tuesday: Sunny, with a high near 76. Light southwest wind increasing to 6 to 11 mph in the afternoon.
Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 49. Southwest wind 5 to 11 mph.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 77. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 50.
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 76.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 51.
Mostly Clear
 Friday

Friday: Sunny, with a high near 77.
Sunny
Hi 77 °F Lo 49 °F Hi 76 °F Lo 49 °F Hi 77 °F Lo 50 °F Hi 76 °F Lo 51 °F Hi 77 °F

 

This Afternoon
 
 Sunny, with a high near 77. North wind around 7 mph becoming west southwest.
Tonight
 
 Mostly clear, with a low around 49. Southwest wind 5 to 11 mph.
Tuesday
 
 Sunny, with a high near 76. Light southwest wind increasing to 6 to 11 mph in the afternoon.
Tuesday Night
 
 Mostly clear, with a low around 49. Southwest wind 5 to 11 mph.
Wednesday
 
 Sunny, with a high near 77. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Wednesday Night
 
 Mostly clear, with a low around 50.
Thursday
 
 Sunny, with a high near 76.
Thursday Night
 
 Mostly clear, with a low around 51.
Friday
 
 Sunny, with a high near 77.
Friday Night
 
 Mostly clear, with a low around 52.
Saturday
 
 Sunny, with a high near 78.
Saturday Night
 
 Mostly clear, with a low around 53.
Sunday
 
 Sunny, with a high near 78.

 

Forecast from NOAA-NWS for Portola Valley CA.