National Weather Service Forecast for: Grass Valley CA
Issued by: National Weather Service Sacramento, CA
Updated: 1:01 pm PST Nov 1, 2026
 
Tonight

Tonight: Clear, with a low around 39. Light and variable wind.
Clear


 Monday

Monday: Increasing clouds, with a high near 60. Light and variable wind.
Increasing
Clouds

 Monday
Night
Monday Night: A 30 percent chance of showers after 4am. Cloudy during the early evening, then gradual clearing, with a low around 44. Light east wind.
Mostly Cloudy
then Chance
Showers

 Tuesday

Tuesday: Showers likely, mainly between 10am and 4pm. Patchy fog after 5pm. Otherwise, mostly cloudy, with a high near 55. Light south southeast wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Showers
Likely and
Patchy Fog

 Tuesday
Night
Tuesday Night: A 30 percent chance of showers before 10pm. Patchy fog between 10pm and 1am. Otherwise, partly cloudy, with a low around 41. Calm wind.
Chance
Showers and
Patchy Fog
then Patchy
Fog
 Wednesday

Wednesday: Sunny, with a high near 61.
Sunny


 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 42.
Mostly Clear


 Thursday

Thursday: Sunny, with a high near 64.
Sunny


 Thursday
Night
Thursday Night: Mostly clear, with a low around 43.
Mostly Clear
Lo 39 °F Hi 60 °F Lo 44 °F Hi 55 °F Lo 41 °F Hi 61 °F Lo 42 °F Hi 64 °F Lo 43 °F

 

Tonight
 
 Clear, with a low around 39. Light and variable wind.
Monday
 
 Increasing clouds, with a high near 60. Light and variable wind.
Monday Night
 
 A 30 percent chance of showers after 4am. Cloudy during the early evening, then gradual clearing, with a low around 44. Light east wind.
Tuesday
 
 Showers likely, mainly between 10am and 4pm. Patchy fog after 5pm. Otherwise, mostly cloudy, with a high near 55. Light south southeast wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
 
 A 30 percent chance of showers before 10pm. Patchy fog between 10pm and 1am. Otherwise, partly cloudy, with a low around 41. Calm wind.
Wednesday
 
 Sunny, with a high near 61.
Wednesday Night
 
 Mostly clear, with a low around 42.
Thursday
 
 Sunny, with a high near 64.
Thursday Night
 
 Mostly clear, with a low around 43.
Friday
 
 Sunny, with a high near 67.
Friday Night
 
 Mostly clear, with a low around 46.
Saturday
 
 Sunny, with a high near 69.
Saturday Night
 
 Partly cloudy, with a low around 47.
Sunday
 
 Mostly sunny, with a high near 69.

 

Forecast from NOAA-NWS for Grass Valley CA.