National Weather Service Forecast for: Grass Valley CA
Issued by: National Weather Service Sacramento, CA
Updated: 2:00 am PDT Jun 22, 2026
 
Overnight

Overnight: Clear, with a steady temperature around 61. Calm wind.
Clear
 Monday

Monday: Sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.
Sunny
 Monday
Night
Monday Night: Clear, with a low around 61. Light and variable wind.
Clear
 Tuesday

Tuesday: Sunny, with a high near 87. Calm wind becoming west southwest around 5 mph in the afternoon.
Sunny
 Tuesday
Night
Tuesday Night: Clear, with a low around 61. Southwest wind around 5 mph becoming calm in the evening.
Clear
 Wednesday

Wednesday: Sunny, with a high near 88.
Sunny
 Wednesday
Night
Wednesday Night: Clear, with a low around 61.
Clear
 Thursday

Thursday: Sunny, with a high near 86.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 59.
Mostly Clear
Lo 61 °F Hi 85 °F Lo 61 °F Hi 87 °F Lo 61 °F Hi 88 °F Lo 61 °F Hi 86 °F Lo 59 °F

 

Overnight
 
 Clear, with a steady temperature around 61. Calm wind.
Monday
 
 Sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
 
 Clear, with a low around 61. Light and variable wind.
Tuesday
 
 Sunny, with a high near 87. Calm wind becoming west southwest around 5 mph in the afternoon.
Tuesday Night
 
 Clear, with a low around 61. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
 
 Sunny, with a high near 88.
Wednesday Night
 
 Clear, with a low around 61.
Thursday
 
 Sunny, with a high near 86.
Thursday Night
 
 Mostly clear, with a low around 59.
Friday
 
 Mostly sunny, with a high near 78.
Friday Night
 
 Mostly clear, with a low around 56.
Saturday
 
 Sunny, with a high near 75.
Saturday Night
 
 Clear, with a low around 54.
Sunday
 
 Sunny, with a high near 80.

 

Forecast from NOAA-NWS for Grass Valley CA.