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.

Partly Cloudy

57°F

14°C

Humidity 38%
Wind Speed SE 5 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 19 Oct 06:55 AM PDT
Extended Forecast for

Grass Valley CA

  • Today

    Today: Sunny, with a high near 66. South wind around 6 mph.

    High: 66 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 44. Light and variable wind.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 65. Light and variable wind.

    High: 65 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 48. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain. Mostly cloudy, with a high near 65. Calm wind becoming east northeast around 5 mph.

    High: 65 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.

    Low: 44 °F

    Rain Likely

  • Thursday

    Thursday: Rain likely, mainly before 11am. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.

    High: 58 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A slight chance of rain. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Slight Chance
    Rain

  • Friday

    Friday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 66. South wind around 6 mph.
Tonight
Mostly cloudy, with a low around 44. Light and variable wind.
Tuesday
Mostly cloudy, with a high near 65. Light and variable wind.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 48. Light and variable wind. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 65. Calm wind becoming east northeast around 5 mph.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Thursday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 42.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 41.
Saturday
Sunny, with a high near 63.
Saturday Night
A slight chance of rain. Partly cloudy, with a low around 43.
Sunday
A chance of rain. Mostly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grass Valley CA
 39.23°N 121.08°W (Elev. 2598 ft)
Last Update:
2:00 am PDT Oct 19, 2026
Forecast Valid:
7am PDT Oct 19, 2026-6pm PDT Oct 25, 2026
 
Forecast Discussion
 
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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