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

Severe Thunderstorms and Critical Fire Weather Wednesday

Scattered severe thunderstorms are possible across portions of the northern High Plains Wednesday afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin Wednesday. Read More >

Current conditions at

Nevada County Air Park (KGOO)

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

Clear

68°F

20°C

Humidity 30%
Wind Speed SE 3 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 12 May 08:55 PM PDT
Extended Forecast for

Grass Valley CA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 53. Light southeast wind.

    Low: 53 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 72. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 51. Calm wind.

    Low: 51 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 54. Light and variable wind.

    Low: 54 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 51.

    Low: 51 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 53. Light southeast wind.
Wednesday
Sunny, with a high near 72. Calm wind becoming south southwest around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 51. Calm wind.
Thursday
Sunny, with a high near 80. Calm wind becoming west southwest around 5 mph in the afternoon.
Thursday Night
Clear, with a low around 54. Light and variable wind.
Friday
Sunny, with a high near 79.
Friday Night
Clear, with a low around 51.
Saturday
Sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Sunny, with a high near 78.
Sunday Night
Clear, with a low around 54.
Monday
Sunny, with a high near 83.
Monday Night
Clear, with a low around 55.
Tuesday
Sunny, with a high near 86.
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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 pm PDT May 12, 2026
Forecast Valid:
9pm PDT May 12, 2026-6pm PDT May 19, 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