National Weather Service Forecast for: Grass Valley CA
Issued by: National Weather Service Sacramento, CA
Updated: 1:21 pm PST Feb 2, 2026
 
Tonight

Tonight: Clear, with a low around 42. Calm wind.
Clear
 Tuesday

Tuesday: Sunny, with a high near 69. Calm wind.
Sunny
 Tuesday
Night
Tuesday Night: Clear, with a low around 44. Light east northeast wind.
Clear
 Wednesday

Wednesday: Sunny, with a high near 72. Light and variable wind.
Sunny
 Wednesday
Night
Wednesday Night: Clear, with a low around 45. Light east northeast wind.
Clear
 Thursday

Thursday: Sunny, with a high near 71.
Sunny
 Thursday
Night
Thursday Night: Mostly cloudy, with a low around 48.
Mostly Cloudy
 Friday

Friday: Partly sunny, with a high near 65.
Partly Sunny
 Friday
Night
Friday Night: Partly cloudy, with a low around 44.
Partly Cloudy
Lo 42 °F Hi 69 °F Lo 44 °F Hi 72 °F Lo 45 °F Hi 71 °F Lo 48 °F Hi 65 °F Lo 44 °F

 

Tonight
 
 Clear, with a low around 42. Calm wind.
Tuesday
 
 Sunny, with a high near 69. Calm wind.
Tuesday Night
 
 Clear, with a low around 44. Light east northeast wind.
Wednesday
 
 Sunny, with a high near 72. Light and variable wind.
Wednesday Night
 
 Clear, with a low around 45. Light east northeast wind.
Thursday
 
 Sunny, with a high near 71.
Thursday Night
 
 Mostly cloudy, with a low around 48.
Friday
 
 Partly sunny, with a high near 65.
Friday Night
 
 Partly cloudy, with a low around 44.
Saturday
 
 Mostly sunny, with a high near 63.
Saturday Night
 
 A slight chance of rain. Partly cloudy, with a low around 45.
Sunday
 
 A chance of rain. Partly sunny, with a high near 60.
Sunday Night
 
 A chance of rain. Mostly cloudy, with a low around 41.
Monday
 
 A chance of rain. Partly sunny, with a high near 55.

 

Forecast from NOAA-NWS for Grass Valley CA.