National Weather Service Forecast for: Donner Summit CA
Issued by: National Weather Service Sacramento, CA
Updated: 1:20 am PST Dec 5, 2025
 
Overnight

Overnight: Widespread frost. Otherwise, mostly clear, with a low around 30. Northeast wind around 5 mph.
Frost

 Friday

Friday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 52. Northeast wind around 6 mph becoming calm in the afternoon.
Frost then
Sunny
 Friday
Night
Friday Night: Areas of frost. Otherwise, mostly clear, with a low around 32. Light west wind.
Areas Frost

 Saturday

Saturday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 50. West wind 3 to 6 mph.
Frost then
Sunny
 Saturday
Night
Saturday Night: Widespread frost, mainly after 10pm. Otherwise, mostly clear, with a low around 30. Calm wind.
Frost

 Sunday

Sunday: Widespread frost before 9am. Otherwise, mostly sunny, with a high near 51.
Frost then
Partly Sunny
 Sunday
Night
Sunday Night: Widespread frost, mainly after 9pm. Otherwise, partly cloudy, with a low around 30.
Frost

 Monday

Monday: Sunny, with a high near 53.
Sunny

 Monday
Night
Monday Night: Areas of frost before 10pm. Otherwise, partly cloudy, with a low around 33.
Areas Frost
then Partly
Cloudy
Lo 30 °F Hi 52 °F Lo 32 °F Hi 50 °F Lo 30 °F Hi 51 °F Lo 30 °F Hi 53 °F Lo 33 °F

 

Overnight
 
 Widespread frost. Otherwise, mostly clear, with a low around 30. Northeast wind around 5 mph.
Friday
 
 Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 52. Northeast wind around 6 mph becoming calm in the afternoon.
Friday Night
 
 Areas of frost. Otherwise, mostly clear, with a low around 32. Light west wind.
Saturday
 
 Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 50. West wind 3 to 6 mph.
Saturday Night
 
 Widespread frost, mainly after 10pm. Otherwise, mostly clear, with a low around 30. Calm wind.
Sunday
 
 Widespread frost before 9am. Otherwise, mostly sunny, with a high near 51.
Sunday Night
 
 Widespread frost, mainly after 9pm. Otherwise, partly cloudy, with a low around 30.
Monday
 
 Sunny, with a high near 53.
Monday Night
 
 Areas of frost before 10pm. Otherwise, partly cloudy, with a low around 33.
Tuesday
 
 Widespread frost, mainly before 7am. Otherwise, mostly sunny, with a high near 55.
Tuesday Night
 
 Areas of frost. Otherwise, partly cloudy, with a low around 36.
Wednesday
 
 Areas of frost. Otherwise, mostly sunny, with a high near 56.
Wednesday Night
 
 Areas of frost. Otherwise, partly cloudy, with a low around 36.
Thursday
 
 Areas of frost. Otherwise, sunny, with a high near 57.

 

Forecast from NOAA-NWS for Donner Summit CA.