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.

Overcast

43°F

6°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 19 Nov 04:15 AM PST
Extended Forecast for

Grass Valley CA

  • Today

    Today: Mostly cloudy, with a high near 49. Light and variable wind.

    High: 49 °F

    Mostly Cloudy

  • Tonight

    Tonight: Showers, mainly after 1am.  Low around 42. Calm wind.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Slight Chance
    Showers then
    Showers

  • Thursday

    Thursday: Showers, mainly before 10am.  High near 46. Light southeast wind.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 46 °F

    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 10pm.  Mostly clear, with a low around 38. Light northeast wind.

    Low: 38 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 58. Northeast wind around 6 mph becoming light and variable.

    High: 58 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41.

    Low: 41 °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 40.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 49. Light and variable wind.
Tonight
Showers, mainly after 1am. Low around 42. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers, mainly before 10am. High near 46. Light southeast wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
A 20 percent chance of showers before 10pm. Mostly clear, with a low around 38. Light northeast wind.
Friday
Sunny, with a high near 58. Northeast wind around 6 mph becoming light and variable.
Friday Night
Mostly clear, with a low around 41.
Saturday
Sunny, with a high near 58.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Sunny, with a high near 60.
Sunday Night
Mostly clear, with a low around 41.
Monday
Mostly sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
Grass Valley CA
 39.2°N 121.07°W (Elev. 2398 ft)
1:21 am PST Nov 19, 2025
4am PST Nov 19, 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