National Weather Service Forecast for: Donner Summit CA
Issued by: National Weather Service Sacramento, CA
Updated: 2:00 pm PDT Jun 19, 2026
 
Tonight

Tonight: Mostly clear, with a low around 40. West wind 5 to 7 mph becoming calm  in the evening.
Mostly Clear
Saturday

Saturday: Sunny, with a high near 68. Calm wind becoming west southwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.
Sunny
Saturday
Night
Saturday Night: Clear, with a low around 41. West southwest wind 5 to 7 mph becoming calm  in the evening. Winds could gust as high as 18 mph.
Clear
Sunday

Sunday: Sunny, with a high near 75. Light and variable wind becoming west around 6 mph in the afternoon.
Sunny
Sunday
Night
Sunday Night: Clear, with a low around 46. West wind 5 to 7 mph becoming calm  in the evening.
Clear
Monday

Monday: Sunny, with a high near 80.
Sunny
Monday
Night
Monday Night: Clear, with a low around 47.
Clear
Tuesday

Tuesday: Sunny, with a high near 79.
Sunny
Tuesday
Night
Tuesday Night: Clear, with a low around 46.
Clear
Lo 40 °F Hi 68 °F Lo 41 °F Hi 75 °F Lo 46 °F Hi 80 °F Lo 47 °F Hi 79 °F Lo 46 °F

 

Tonight
 
Mostly clear, with a low around 40. West wind 5 to 7 mph becoming calm in the evening.
Saturday
 
Sunny, with a high near 68. Calm wind becoming west southwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
 
Clear, with a low around 41. West southwest wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Sunday
 
Sunny, with a high near 75. Light and variable wind becoming west around 6 mph in the afternoon.
Sunday Night
 
Clear, with a low around 46. West wind 5 to 7 mph becoming calm in the evening.
Monday
 
Sunny, with a high near 80.
Monday Night
 
Clear, with a low around 47.
Tuesday
 
Sunny, with a high near 79.
Tuesday Night
 
Clear, with a low around 46.
Wednesday
 
Sunny, with a high near 78.
Wednesday Night
 
Clear, with a low around 46.
Thursday
 
Sunny, with a high near 77.
Thursday Night
 
Clear, with a low around 46.
Friday
 
Sunny, with a high near 76.

 

Forecast from NOAA-NWS for Donner Summit CA.