National Weather Service Forecast for: 6 Miles SW Portola Valley CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 1:40 am PST Dec 5, 2025
 
Overnight

Overnight: Mostly clear, with a low around 41. Northeast wind 8 to 10 mph.
Mostly Clear
 Friday

Friday: Sunny, with a high near 63. North northeast wind 6 to 13 mph becoming northwest in the afternoon.
Sunny
 Friday
Night
Friday Night: Partly cloudy, with a low around 46. Light and variable wind.
Partly Cloudy
 Saturday

Saturday: Partly sunny, then gradually becoming sunny, with a high near 64. North wind around 9 mph.
Becoming
Sunny
 Saturday
Night
Saturday Night: Partly cloudy, with a low around 46. Light and variable wind becoming northeast 8 to 13 mph in the evening.
Partly Cloudy
 Sunday

Sunday: Mostly sunny, with a high near 65.
Mostly Sunny
 Sunday
Night
Sunday Night: Partly cloudy, with a low around 46.
Partly Cloudy
 Monday

Monday: Sunny, with a high near 64.
Sunny
 Monday
Night
Monday Night: Partly cloudy, with a low around 47.
Partly Cloudy
Lo 41 °F Hi 63 °F Lo 46 °F Hi 64 °F Lo 46 °F Hi 65 °F Lo 46 °F Hi 64 °F Lo 47 °F

 

Overnight
 
 Mostly clear, with a low around 41. Northeast wind 8 to 10 mph.
Friday
 
 Sunny, with a high near 63. North northeast wind 6 to 13 mph becoming northwest in the afternoon.
Friday Night
 
 Partly cloudy, with a low around 46. Light and variable wind.
Saturday
 
 Partly sunny, then gradually becoming sunny, with a high near 64. North wind around 9 mph.
Saturday Night
 
 Partly cloudy, with a low around 46. Light and variable wind becoming northeast 8 to 13 mph in the evening.
Sunday
 
 Mostly sunny, with a high near 65.
Sunday Night
 
 Partly cloudy, with a low around 46.
Monday
 
 Sunny, with a high near 64.
Monday Night
 
 Partly cloudy, with a low around 47.
Tuesday
 
 Mostly sunny, with a high near 66.
Tuesday Night
 
 Partly cloudy, with a low around 49.
Wednesday
 
 Mostly sunny, with a high near 66.
Wednesday Night
 
 Mostly clear, with a low around 49.
Thursday
 
 Sunny, with a high near 66.

 

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