National Weather Service Forecast for: 5 Miles SW Portola Valley CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: 11:44 pm PST Feb 1, 2026
 
Overnight

Overnight: Mostly clear, with a steady temperature around 52. Northeast wind around 8 mph.
Mostly Clear
 Monday

Monday: Sunny, with a high near 66. North northeast wind 6 to 9 mph.
Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 50. Calm wind.
Mostly Clear
 Tuesday

Tuesday: Sunny, with a high near 70. East northeast wind 3 to 5 mph.
Sunny
 Tuesday
Night
Tuesday Night: Clear, with a low around 51. Calm wind.
Clear
 Wednesday

Wednesday: Sunny, with a high near 71.
Sunny
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 52.
Mostly Clear
 Thursday

Thursday: Sunny, with a high near 70.
Sunny
 Thursday
Night
Thursday Night: Mostly cloudy, with a low around 52.
Mostly Cloudy
Lo 52 °F Hi 66 °F Lo 50 °F Hi 70 °F Lo 51 °F Hi 71 °F Lo 52 °F Hi 70 °F Lo 52 °F

 

Overnight
 
 Mostly clear, with a steady temperature around 52. Northeast wind around 8 mph.
Monday
 
 Sunny, with a high near 66. North northeast wind 6 to 9 mph.
Monday Night
 
 Mostly clear, with a low around 50. Calm wind.
Tuesday
 
 Sunny, with a high near 70. East northeast wind 3 to 5 mph.
Tuesday Night
 
 Clear, with a low around 51. Calm wind.
Wednesday
 
 Sunny, with a high near 71.
Wednesday Night
 
 Mostly clear, with a low around 52.
Thursday
 
 Sunny, with a high near 70.
Thursday Night
 
 Mostly cloudy, with a low around 52.
Friday
 
 Mostly sunny, with a high near 67.
Friday Night
 
 Mostly cloudy, with a low around 51.
Saturday
 
 Mostly sunny, with a high near 65.
Saturday Night
 
 Partly cloudy, with a low around 51.
Sunday
 
 A slight chance of rain. Mostly sunny, with a high near 66.

 

Forecast from NOAA-NWS for 5 Miles SW Portola Valley CA.