National Weather Service Forecast for: Donner Summit CA
Issued by: National Weather Service Sacramento, CA
Updated: 1:51 pm PST Dec 17, 2025
 
Tonight

Tonight: A slight chance of rain and snow showers after 3am. Widespread frost before 1am. Otherwise, partly cloudy, with a low around 29. West southwest wind 5 to 7 mph. Chance of precipitation is 20%.
Frost then
Slight Chance
Rain/Snow
 Thursday

Thursday: A 10 percent chance of showers after 4pm. Partly sunny, with a high near 47. Southwest wind around 10 mph, with gusts as high as 25 mph.
Mostly Sunny
then Slight
Chance
Showers
 Thursday
Night
Thursday Night: A slight chance of rain showers before 10pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 33. Southwest wind 14 to 18 mph, with gusts as high as 36 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Chance
Rain/Snow

 Friday

Friday: Rain and snow showers, becoming all rain after 1pm. High near 41. Southwest wind 11 to 18 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Rain/Snow

 Friday
Night
Friday Night: Showers. Low around 33. Southwest wind 15 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 90%.
Showers

 Saturday

Saturday: Showers. High near 42. Chance of precipitation is 80%.
Showers

 Saturday
Night
Saturday Night: Showers, with thunderstorms also possible after 4am. Low around 34. Chance of precipitation is 90%.
Showers

 Sunday

Sunday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Cloudy, with a high near 41.
Heavy Rain

 Sunday
Night
Sunday Night: Showers. The rain could be heavy at times. Cloudy, with a low around 32.
Heavy Rain
Lo 29 °F Hi 47 °F Lo 33 °F Hi 41 °F Lo 33 °F Hi 42 °F Lo 34 °F Hi 41 °F Lo 32 °F

 

Tonight
 
 A slight chance of rain and snow showers after 3am. Widespread frost before 1am. Otherwise, partly cloudy, with a low around 29. West southwest wind 5 to 7 mph. Chance of precipitation is 20%.
Thursday
 
 A 10 percent chance of showers after 4pm. Partly sunny, with a high near 47. Southwest wind around 10 mph, with gusts as high as 25 mph.
Thursday Night
 
 A slight chance of rain showers before 10pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 33. Southwest wind 14 to 18 mph, with gusts as high as 36 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday
 
 Rain and snow showers, becoming all rain after 1pm. High near 41. Southwest wind 11 to 18 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Friday Night
 
 Showers. Low around 33. Southwest wind 15 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 90%.
Saturday
 
 Showers. High near 42. Chance of precipitation is 80%.
Saturday Night
 
 Showers, with thunderstorms also possible after 4am. Low around 34. Chance of precipitation is 90%.
Sunday
 
 Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Cloudy, with a high near 41.
Sunday Night
 
 Showers. The rain could be heavy at times. Cloudy, with a low around 32.
Monday
 
 Rain and snow showers. Cloudy, with a high near 38.
Monday Night
 
 Rain and snow showers likely. Mostly cloudy, with a low around 30.
Tuesday
 
 Snow showers likely. Mostly cloudy, with a high near 39.
Tuesday Night
 
 Snow showers. The snow could be heavy at times. Cloudy, with a low around 29.
Wednesday
 
 Snow showers. The snow could be heavy at times. Cloudy, with a high near 38.

 

Forecast from NOAA-NWS for Donner Summit CA.