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

64°F

18°C

Humidity 25%
Wind Speed ESE 5 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 11 Nov 08:35 PM PST
Extended Forecast for

Grass Valley CA

  • Tonight

    Tonight: Clear, with a steady temperature around 53. East southeast wind 3 to 5 mph.

    Low: 53 °F

    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 71. East southeast wind around 6 mph becoming light and variable.

    High: 71 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Rain likely, mainly after 4am. Mostly cloudy, with a low around 47. Southeast wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Partly Cloudy
    then Rain
    Likely

  • Friday

    Friday: Rain likely before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain and possibly a thunderstorm after 4pm. High near 54. South wind 11 to 15 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 54 °F

    Showers

  • Friday Night

    Friday Night: Rain. Low around 40. South southeast wind 5 to 7 mph, with gusts as high as 18 mph. Chance of precipitation is 100%.

    Low: 40 °F

    Rain then
    Rain Likely

  • Saturday

    Saturday: A 40 percent chance of rain. Partly sunny, with a high near 52.

    High: 52 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain, mainly after 4pm. Mostly cloudy, with a high near 53.

    High: 53 °F

    Rain

  • Sunday Night

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

    Low: 41 °F

    Rain

Detailed Forecast

Tonight
Clear, with a steady temperature around 53. East southeast wind 3 to 5 mph.
Thursday
Increasing clouds, with a high near 71. East southeast wind around 6 mph becoming light and variable.
Thursday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 47. Southeast wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain likely before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then rain and possibly a thunderstorm after 4pm. High near 54. South wind 11 to 15 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Friday Night
Rain. Low around 40. South southeast wind 5 to 7 mph, with gusts as high as 18 mph. Chance of precipitation is 100%.
Saturday
A 40 percent chance of rain. Partly sunny, with a high near 52.
Saturday Night
Mostly cloudy, with a low around 40.
Sunday
Rain, mainly after 4pm. Mostly cloudy, with a high near 53.
Sunday Night
Rain. Cloudy, with a low around 41.
Monday
Rain, mainly before 4pm. Mostly cloudy, with a high near 48.
Monday Night
A chance of rain. Mostly cloudy, with a low around 34.
Tuesday
Mostly sunny, with a high near 50.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 34.
Wednesday
Rain likely. Mostly cloudy, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
Grass Valley CA
 39.23°N 121.08°W (Elev. 2598 ft)
Last Update:
1:00 pm PST Nov 11, 2026
Forecast Valid:
8pm PST Nov 11, 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