National Weather Service Forecast for: 3 Miles WNW Portola Valley CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 11:27 am PDT Oct 6, 2026
 
This
Afternoon
This Afternoon: Sunny, with a high near 95. Light north wind.
Sunny
 Tonight

Tonight: Clear, with a low around 63. Calm wind.
Clear
 Wednesday

Wednesday: Sunny, with a high near 94. Calm wind.
Sunny
 Wednesday
Night
Wednesday Night: Clear, with a low around 59. Calm wind.
Clear
 Thursday

Thursday: Sunny, with a high near 90. Calm wind.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 59.
Mostly Clear
 Friday

Friday: Sunny, with a high near 82.
Sunny
 Friday
Night
Friday Night: Mostly clear, with a low around 56.
Mostly Clear
 Saturday

Saturday: Mostly sunny, with a high near 69.
Mostly Sunny
Hi 95 °F Lo 63 °F Hi 94 °F Lo 59 °F Hi 90 °F Lo 59 °F Hi 82 °F Lo 56 °F Hi 69 °F

Heat Advisory
 

This Afternoon
 
 Sunny, with a high near 95. Light north wind.
Tonight
 
 Clear, with a low around 63. Calm wind.
Wednesday
 
 Sunny, with a high near 94. Calm wind.
Wednesday Night
 
 Clear, with a low around 59. Calm wind.
Thursday
 
 Sunny, with a high near 90. Calm wind.
Thursday Night
 
 Mostly clear, with a low around 59.
Friday
 
 Sunny, with a high near 82.
Friday Night
 
 Mostly clear, with a low around 56.
Saturday
 
 Mostly sunny, with a high near 69.
Saturday Night
 
 Mostly clear, with a low around 48.
Sunday
 
 Sunny, with a high near 70.
Sunday Night
 
 Clear, with a low around 48.
Columbus Day
 
 Sunny, with a high near 72.

 

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