National Weather Service Forecast for: Portola CA
Issued by: National Weather Service Reno, NV
Updated: 11:30 am PDT Jul 12, 2026
 
This
Afternoon
This Afternoon: Mostly cloudy, with a high near 83. Southwest wind around 10 mph, with gusts as high as 20 mph.
Mostly Cloudy

 Tonight

Tonight: A 20 percent chance of showers after 11pm. Cloudy, with a low around 54. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Slight Chance
Showers

 Monday

Monday: A slight chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 20%.
Slight Chance
Showers then
Slight Chance
T-storms
 Monday
Night
Monday Night: Patchy smoke after 4am. Partly cloudy, with a low around 52. West wind around 5 mph becoming calm in the evening.
Partly Cloudy
then Patchy
Smoke
 Tuesday

Tuesday: A 20 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon.
Slight Chance
T-storms

 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 52. Southwest wind 5 to 10 mph becoming light in the evening.
Mostly Clear

 Wednesday

Wednesday: Sunny, with a high near 88.
Sunny

 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 51.
Mostly Clear

 Thursday

Thursday: Sunny, with a high near 89.
Sunny
Hi 83 °F Lo 54 °F Hi 82 °F Lo 52 °F Hi 84 °F Lo 52 °F Hi 88 °F Lo 51 °F Hi 89 °F

 

This Afternoon
 
 Mostly cloudy, with a high near 83. Southwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
 
 A 20 percent chance of showers after 11pm. Cloudy, with a low around 54. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Monday
 
 A slight chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 20%.
Monday Night
 
 Patchy smoke after 4am. Partly cloudy, with a low around 52. West wind around 5 mph becoming calm in the evening.
Tuesday
 
 A 20 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 84. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
 
 Mostly clear, with a low around 52. Southwest wind 5 to 10 mph becoming light in the evening.
Wednesday
 
 Sunny, with a high near 88.
Wednesday Night
 
 Mostly clear, with a low around 51.
Thursday
 
 Sunny, with a high near 89.
Thursday Night
 
 Mostly clear, with a low around 51.
Friday
 
 Sunny, with a high near 89.
Friday Night
 
 Partly cloudy, with a low around 53.
Saturday
 
 Mostly sunny, with a high near 88.

 

Forecast from NOAA-NWS for Portola CA.