Storm Impacting the Southwest U.S.

A slow moving weather disturbance will continue to bring periodic rain showers, a few isolated thunderstorms, and a localized flash flooding across the Southwest. The threat will expand into the Southern Plains Wednesday night. Moderate to heavy snow across the Sierra Nevada and southern Utah Ranges will continue into the overnight period. Read More >

Current conditions at

Nevada County Air Park (KGOO)

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

Fog

43°F

6°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 43°F (6°C)
Visibility 0.25 mi
Last update 18 Nov 08:35 PM PST
Extended Forecast for

Grass Valley CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 51. Light and variable wind.

    High: 51 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Showers, mainly after 10pm.  Low around 41. Calm wind.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Showers

  • Thursday

    Thursday: Showers, mainly before 4pm.  High near 47. Light south wind.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 47 °F

    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before 10pm.  Partly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Saturday Night

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

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 39. Calm wind.
Wednesday
Mostly cloudy, with a high near 51. Light and variable wind.
Wednesday Night
Showers, mainly after 10pm. Low around 41. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers, mainly before 4pm. High near 47. Light south wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
A 30 percent chance of showers before 10pm. Partly cloudy, with a low around 37. Calm wind.
Friday
Sunny, with a high near 58.
Friday Night
Mostly clear, with a low around 40.
Saturday
Sunny, with a high near 58.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 40.
Monday
Mostly sunny, with a high near 58.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
Mostly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
Grass Valley CA
 39.23°N 121.08°W (Elev. 2598 ft)
1:20 pm PST Nov 18, 2025
9pm PST Nov 18, 2025-6pm PST Nov 25, 2025
 
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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