National Weather Service Forecast for: Grass Valley CA
Issued by: National Weather Service Sacramento, CA
Updated: 2:20 pm PDT Mar 19, 2026
 
Overnight

Overnight: Clear, with a low around 57. Light east wind.
Clear
 Friday

Friday: Sunny, with a high near 86. Calm wind becoming south southwest around 5 mph.
Sunny
 Friday
Night
Friday Night: Mostly clear, with a low around 56. Light and variable wind.
Mostly Clear
 Saturday

Saturday: Mostly sunny, with a high near 80. Calm wind becoming west southwest around 5 mph in the afternoon.
Mostly Sunny
 Saturday
Night
Saturday Night: Mostly clear, with a low around 53. Light and variable wind.
Mostly Clear
 Sunday

Sunday: Sunny, with a high near 79.
Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 52.
Mostly Clear
 Monday

Monday: Mostly sunny, with a high near 78.
Mostly Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 52.
Mostly Clear
Lo 57 °F Hi 86 °F Lo 56 °F Hi 80 °F Lo 53 °F Hi 79 °F Lo 52 °F Hi 78 °F Lo 52 °F

 

Overnight
 
 Clear, with a low around 57. Light east wind.
Friday
 
 Sunny, with a high near 86. Calm wind becoming south southwest around 5 mph.
Friday Night
 
 Mostly clear, with a low around 56. Light and variable wind.
Saturday
 
 Mostly sunny, with a high near 80. Calm wind becoming west southwest around 5 mph in the afternoon.
Saturday Night
 
 Mostly clear, with a low around 53. Light and variable wind.
Sunday
 
 Sunny, with a high near 79.
Sunday Night
 
 Mostly clear, with a low around 52.
Monday
 
 Mostly sunny, with a high near 78.
Monday Night
 
 Mostly clear, with a low around 52.
Tuesday
 
 Sunny, with a high near 79.
Tuesday Night
 
 Mostly clear, with a low around 52.
Wednesday
 
 Sunny, with a high near 75.
Wednesday Night
 
 Mostly clear, with a low around 49.
Thursday
 
 Sunny, with a high near 78.

 

Forecast from NOAA-NWS for Grass Valley CA.