National Weather Service Forecast for: 9 Miles NNW Grass Valley CA
Issued by: National Weather Service Sacramento, CA
Updated: 11:31 am PDT May 26, 2026
 
This
Afternoon
This Afternoon: Showers likely and possibly a thunderstorm before 5pm, then rain likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 62. Light west southwest wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers
Likely
 Tonight

Tonight: A 30 percent chance of rain, mainly before 2am. Mostly cloudy, with a low around 42. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain
 Wednesday

Wednesday: Rain likely and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then a chance of rain and thunderstorms after 5pm. Mostly cloudy, with a high near 60. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Showers
Likely
 Wednesday
Night
Wednesday Night: A slight chance of rain before 3am, then a slight chance of rain after 4am. Partly cloudy, with a low around 43. Calm wind. Chance of precipitation is 20%. New precipitation amounts of less than a tenth of an inch possible.
Slight Chance
Rain
 Thursday

Thursday: A slight chance of rain, then showers likely and possibly a thunderstorm after 11am. Partly sunny, with a high near 66. Light and variable wind. Chance of precipitation is 60%.
Showers
Likely
 Thursday
Night
Thursday Night: A 40 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 46.
Chance Rain
 Friday

Friday: A 20 percent chance of rain. Partly sunny, with a high near 69.
Slight Chance
Rain
 Friday
Night
Friday Night: Partly cloudy, with a low around 48.
Partly Cloudy
 Saturday

Saturday: Sunny, with a high near 75.
Sunny
Hi 62 °F Lo 42 °F Hi 60 °F Lo 43 °F Hi 66 °F Lo 46 °F Hi 69 °F Lo 48 °F Hi 75 °F

 

This Afternoon
 
 Showers likely and possibly a thunderstorm before 5pm, then rain likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 62. Light west southwest wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
 
 A 30 percent chance of rain, mainly before 2am. Mostly cloudy, with a low around 42. Calm wind. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
 
 Rain likely and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then a chance of rain and thunderstorms after 5pm. Mostly cloudy, with a high near 60. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
 
 A slight chance of rain before 3am, then a slight chance of rain after 4am. Partly cloudy, with a low around 43. Calm wind. Chance of precipitation is 20%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
 
 A slight chance of rain, then showers likely and possibly a thunderstorm after 11am. Partly sunny, with a high near 66. Light and variable wind. Chance of precipitation is 60%.
Thursday Night
 
 A 40 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 46.
Friday
 
 A 20 percent chance of rain. Partly sunny, with a high near 69.
Friday Night
 
 Partly cloudy, with a low around 48.
Saturday
 
 Sunny, with a high near 75.
Saturday Night
 
 Mostly clear, with a low around 48.
Sunday
 
 Sunny, with a high near 80.
Sunday Night
 
 Clear, with a low around 51.
Monday
 
 Sunny, with a high near 84.

 

Forecast from NOAA-NWS for 9 Miles NNW Grass Valley CA.