National Weather Service Forecast for: Grass Valley CA
Issued by: National Weather Service Sacramento, CA
Updated: 2:01 am PDT May 4, 2026
 
Today

Today: Rain likely, mainly after noon. Mostly cloudy, with a high near 53. Light south wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain Likely
 Tonight

Tonight: Rain, mainly before 3am. Low around 44. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Rain
 Tuesday

Tuesday: Partly sunny, with a high near 59. Light and variable wind.
Partly Sunny
 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 46. Light and variable wind.
Partly Cloudy
 Wednesday

Wednesday: Sunny, with a high near 72. Calm wind becoming west around 5 mph in the afternoon.
Sunny
 Wednesday
Night
Wednesday Night: Clear, with a low around 51.
Clear
 Thursday

Thursday: Sunny, with a high near 76.
Sunny
 Thursday
Night
Thursday Night: Clear, with a low around 51.
Clear
 Friday

Friday: Sunny, with a high near 77.
Sunny
Hi 53 °F Lo 44 °F Hi 59 °F Lo 46 °F Hi 72 °F Lo 51 °F Hi 76 °F Lo 51 °F Hi 77 °F

 

Today
 
 Rain likely, mainly after noon. Mostly cloudy, with a high near 53. Light south wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
 
 Rain, mainly before 3am. Low around 44. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
 
 Partly sunny, with a high near 59. Light and variable wind.
Tuesday Night
 
 Partly cloudy, with a low around 46. Light and variable wind.
Wednesday
 
 Sunny, with a high near 72. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
 
 Clear, with a low around 51.
Thursday
 
 Sunny, with a high near 76.
Thursday Night
 
 Clear, with a low around 51.
Friday
 
 Sunny, with a high near 77.
Friday Night
 
 Mostly clear, with a low around 54.
Saturday
 
 Sunny, with a high near 84.
Saturday Night
 
 Clear, with a low around 58.
Sunday
 
 Sunny, with a high near 87.

 

Forecast from NOAA-NWS for Grass Valley CA.