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

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Current conditions at

Nevada County Air Park (KGOO)

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

Clear

52°F

11°C

Humidity 29%
Wind Speed N 0 MPH
Barometer 30.4 in (1029.46 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 09 Jan 11:35 AM PST
Extended Forecast for

Grass Valley CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 52. Calm wind.

    High: 52 °F

    Sunny

  • Tonight

    Tonight: Areas of frost between 9pm and 3am. Otherwise, mostly clear, with a low around 33. East wind 3 to 5 mph.

    Low: 33 °F

    Areas Frost

  • Saturday

    Saturday: Mostly sunny, with a high near 54. East northeast wind around 5 mph becoming calm in the morning.

    High: 54 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36. Light east northeast wind.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Areas of frost before 7am. Otherwise, mostly sunny, with a high near 57. Light and variable wind.

    High: 57 °F

    Areas Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 52. Calm wind.
Tonight
Areas of frost between 9pm and 3am. Otherwise, mostly clear, with a low around 33. East wind 3 to 5 mph.
Saturday
Mostly sunny, with a high near 54. East northeast wind around 5 mph becoming calm in the morning.
Saturday Night
Partly cloudy, with a low around 36. Light east northeast wind.
Sunday
Areas of frost before 7am. Otherwise, mostly sunny, with a high near 57. Light and variable wind.
Sunday Night
Mostly clear, with a low around 38.
Monday
Sunny, with a high near 60.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Clear, with a low around 46.
Thursday
Sunny, with a high near 67.
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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 Jan 9, 2026
Forecast Valid:
12pm PST Jan 9, 2026-6pm PST Jan 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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