National Weather Service Forecast for: Portola CA
Issued by: National Weather Service Reno, NV
Updated: 1:15 am PST Feb 2, 2026
 
Overnight

Overnight: Clear, with a low around 27. Calm wind.
Clear
 Monday

Monday: Sunny, with a high near 58. Calm wind becoming east around 5 mph in the morning.
Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 28. Calm wind.
Mostly Clear
 Tuesday

Tuesday: Sunny, with a high near 59. Calm wind becoming east around 5 mph.
Sunny
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 27. Calm wind.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 59. East wind around 5 mph.
Sunny
 Wednesday
Night
Wednesday Night: Clear, with a low around 28.
Clear
 Thursday

Thursday: Sunny, with a high near 60.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 32.
Mostly Clear
Lo 27 °F Hi 58 °F Lo 28 °F Hi 59 °F Lo 27 °F Hi 59 °F Lo 28 °F Hi 60 °F Lo 32 °F

 

Overnight
 
 Clear, with a low around 27. Calm wind.
Monday
 
 Sunny, with a high near 58. Calm wind becoming east around 5 mph in the morning.
Monday Night
 
 Mostly clear, with a low around 28. Calm wind.
Tuesday
 
 Sunny, with a high near 59. Calm wind becoming east around 5 mph.
Tuesday Night
 
 Mostly clear, with a low around 27. Calm wind.
Wednesday
 
 Sunny, with a high near 59. East wind around 5 mph.
Wednesday Night
 
 Clear, with a low around 28.
Thursday
 
 Sunny, with a high near 60.
Thursday Night
 
 Mostly clear, with a low around 32.
Friday
 
 Mostly sunny, with a high near 59.
Friday Night
 
 Mostly clear, with a low around 32.
Saturday
 
 Sunny, with a high near 56.
Saturday Night
 
 Partly cloudy, with a low around 32.
Sunday
 
 Mostly sunny, with a high near 54.

 

Forecast from NOAA-NWS for Portola CA.