National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Nevada County Air Park (KGOO)

Lat: 39.224028°NLon: 121.003083°WElev: 3154.0ft.

Clear

68°F

20°C

Humidity 24%
Wind Speed SW 4 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 12 Nov 01:55 PM PST
Extended Forecast for

Grass Valley CA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 71. South wind around 6 mph.

    High: 71 °F

    Partly Sunny

  • Tonight

    Tonight: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 46. Calm wind becoming southeast around 5 mph after midnight. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: Rain before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 52. South wind 14 to 17 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 52 °F

    Showers

  • Friday Night

    Friday Night: Rain, mainly before 10pm. Low around 39. Southeast wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Rain then
    Chance Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 55. East southeast wind around 5 mph becoming calm in the morning.

    High: 55 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of rain after 10am. Mostly cloudy, with a high near 54.

    High: 54 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain. Cloudy, with a low around 41.

    Low: 41 °F

    Rain

  • Monday

    Monday: A chance of rain, mainly before 4pm. Mostly cloudy, with a high near 50.

    High: 50 °F

    Chance Rain

Detailed Forecast

This Afternoon
Partly sunny, with a high near 71. South wind around 6 mph.
Tonight
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 46. Calm wind becoming southeast around 5 mph after midnight. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 52. South wind 14 to 17 mph, with gusts as high as 38 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Friday Night
Rain, mainly before 10pm. Low around 39. Southeast wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Mostly sunny, with a high near 55. East southeast wind around 5 mph becoming calm in the morning.
Saturday Night
Mostly cloudy, with a low around 39.
Sunday
A 40 percent chance of rain after 10am. Mostly cloudy, with a high near 54.
Sunday Night
Rain. Cloudy, with a low around 41.
Monday
A chance of rain, mainly before 4pm. Mostly cloudy, with a high near 50.
Monday Night
A slight chance of rain before 10pm. Partly cloudy, with a low around 34.
Tuesday
Mostly sunny, with a high near 52.
Tuesday Night
Rain likely. Partly cloudy, with a low around 34.
Wednesday
Rain. Mostly cloudy, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grass Valley CA
 39.2°N 121.07°W (Elev. 2398 ft)
Last Update:
1:00 pm PST Nov 12, 2026
Forecast Valid:
2pm PST Nov 12, 2026-6pm PST Nov 18, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation