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

Showers and Thunderstorms in the Southwest and Ohio Valley; Mountain Snow in the Northeast

Showers and thunderstorms, along with high-elevation snow, will begin to develop over parts of the Southwest late tonight and is expected to continue through Wednesday morning. Mountain snow over parts the Northeast will continue through Tuesday. A few strong to severe storms and heavy rainfall are possible across portions of the Lower Ohio Valley Tuesday. Read More >

Current conditions at

Nevada County Air Park (KGOO)

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

Overcast

41°F

5°C

Humidity 100%
Wind Speed NNW 4 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 18 Nov 01:55 AM PST
Extended Forecast for

Grass Valley CA

  • Overnight

    Overnight: A 20 percent chance of showers before 3am. Partly cloudy, with a steady temperature around 40. Calm wind.

    Low: 40 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 52. Light and variable wind.

    High: 52 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

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

    High: 49 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers after 10pm. Mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly before 4pm. Mostly cloudy, with a high near 47. Chance of precipitation is 70%.

    High: 47 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 10pm. Partly cloudy, with a low around 37.

    Low: 37 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Friday Night

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

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers before 3am. Partly cloudy, with a steady temperature around 40. Calm wind.
Tuesday
Mostly sunny, with a high near 52. Light and variable wind.
Tuesday Night
Mostly cloudy, with a low around 40. Calm wind.
Wednesday
Mostly cloudy, with a high near 49. Light and variable wind.
Wednesday Night
A 50 percent chance of showers after 10pm. Mostly cloudy, with a low around 41. Calm wind.
Thursday
Showers likely, mainly before 4pm. Mostly cloudy, with a high near 47. Chance of precipitation is 70%.
Thursday Night
A 20 percent chance of showers before 10pm. Partly cloudy, with a low around 37.
Friday
Sunny, with a high near 57.
Friday Night
Mostly clear, with a low around 39.
Saturday
Sunny, with a high near 58.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Mostly sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 39.
Monday
A slight chance of showers. Partly sunny, with a high near 56.
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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:
1:21 am PST Nov 18, 2025
Forecast Valid:
2am PST Nov 18, 2025-6pm PST Nov 24, 2025
 
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