Current conditions at

Nevada County Air Park (KGOO)

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

Mist

55°F

13°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 55°F (13°C)
Visibility 2.00 mi
Last update 03 Sep 09:55 PM PDT
Extended Forecast for

Grass Valley CA

  • Tonight

    Tonight: A 50 percent chance of showers, mainly before 3am.  Mostly cloudy, with a low around 52. Light south southeast wind.  New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 52 °F

    Chance
    Showers

  • Friday

    Friday: A 10 percent chance of showers before 7am.  Mostly cloudy through mid morning, then gradual clearing, with a high near 68. South southeast wind 3 to 5 mph.

    High: 68 °F

    Slight Chance
    Showers then
    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 49. Calm wind.

    Low: 49 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 73. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 73 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 53. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 53 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 50.

    Low: 50 °F

    Clear

  • Labor Day

    Labor Day: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Tonight
A 50 percent chance of showers, mainly before 3am. Mostly cloudy, with a low around 52. Light south southeast wind. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
A 10 percent chance of showers before 7am. Mostly cloudy through mid morning, then gradual clearing, with a high near 68. South southeast wind 3 to 5 mph.
Friday Night
Clear, with a low around 49. Calm wind.
Saturday
Sunny, with a high near 73. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
Clear, with a low around 53. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 73.
Sunday Night
Clear, with a low around 50.
Labor Day
Sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 81.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
A slight chance of rain. Mostly sunny, with a high near 83.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Grass Valley CA
 39.23°N 121.08°W (Elev. 2598 ft)
2:00 pm PDT Sep 3, 2026
10pm PDT Sep 3, 2026-6pm PDT Sep 10, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database