National Weather Service Forecast for: Portola CA
Issued by: National Weather Service Reno, NV
Updated: 11:30 am PDT May 26, 2026
 
This
Afternoon
This Afternoon: Showers and possibly a thunderstorm. Snow level 6400 feet. High near 51. West wind 5 to 10 mph. Chance of precipitation is 80%.
Showers

 Tonight

Tonight: Rain showers before 11pm, then a chance of rain and snow showers. Snow level 6200 feet. Low around 33. West wind around 5 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Rain/Snow
then Chance
Rain/Snow
 Wednesday

Wednesday: A chance of rain and snow showers before 8am, then rain showers. Some thunder is also possible. Snow level 5900 feet rising to 7200 feet in the afternoon. High near 49. West wind around 5 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Rain/Snow
then Showers
 Wednesday
Night
Wednesday Night: A 50 percent chance of showers before 8pm. Snow level 7100 feet. Mostly cloudy, with a low around 33. Calm wind.
Chance
Showers then
Mostly Cloudy
 Thursday

Thursday: A slight chance of showers, then showers and possibly a thunderstorm after 11am. Snow level 6900 feet rising to 8500 feet in the afternoon. High near 58. Calm wind becoming northwest around 5 mph. Chance of precipitation is 90%.
Showers

 Thursday
Night
Thursday Night: A 50 percent chance of showers before 11pm. Mostly cloudy, with a low around 36. West wind around 5 mph.
Chance
Showers then
Mostly Cloudy
 Friday

Friday: A 40 percent chance of showers. Partly sunny, with a high near 60.
Chance
Showers
 Friday
Night
Friday Night: Partly cloudy, with a low around 38.
Partly Cloudy

 Saturday

Saturday: Mostly sunny, with a high near 66.
Mostly Sunny
Hi 51 °F Lo 33 °F Hi 49 °F Lo 33 °F Hi 58 °F Lo 36 °F Hi 60 °F Lo 38 °F Hi 66 °F

 

This Afternoon
 
 Showers and possibly a thunderstorm. Snow level 6400 feet. High near 51. West wind 5 to 10 mph. Chance of precipitation is 80%.
Tonight
 
 Rain showers before 11pm, then a chance of rain and snow showers. Snow level 6200 feet. Low around 33. West wind around 5 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday
 
 A chance of rain and snow showers before 8am, then rain showers. Some thunder is also possible. Snow level 5900 feet rising to 7200 feet in the afternoon. High near 49. West wind around 5 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday Night
 
 A 50 percent chance of showers before 8pm. Snow level 7100 feet. Mostly cloudy, with a low around 33. Calm wind.
Thursday
 
 A slight chance of showers, then showers and possibly a thunderstorm after 11am. Snow level 6900 feet rising to 8500 feet in the afternoon. High near 58. Calm wind becoming northwest around 5 mph. Chance of precipitation is 90%.
Thursday Night
 
 A 50 percent chance of showers before 11pm. Mostly cloudy, with a low around 36. West wind around 5 mph.
Friday
 
 A 40 percent chance of showers. Partly sunny, with a high near 60.
Friday Night
 
 Partly cloudy, with a low around 38.
Saturday
 
 Mostly sunny, with a high near 66.
Saturday Night
 
 Mostly clear, with a low around 37.
Sunday
 
 Sunny, with a high near 72.
Sunday Night
 
 Mostly clear, with a low around 40.
Monday
 
 Sunny, with a high near 77.

 

Forecast from NOAA-NWS for Portola CA.