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

Atmospheric River in the West; Strong Winds in the Northeast

A strong atmospheric river will continue moderate to heavy rainfall with possible flooding, gusty to high winds, and mountain snows for parts of the Northwest U.S. today into Thursday. Additional impacts are likely into Friday with a cold front. A fast-moving storm system will cross the Northeast U.S. today into Thursday with gusty to high winds and areas of rain and high elevation snow showers. Read More >

Current conditions at

Nevada County Air Park (KGOO)

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

Mist

46°F

8°C

Humidity 100%
Wind Speed SSE 10 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 46°F (8°C)
Visibility 0.75 mi
Wind Chill41°F (5°C)
Last update 05 Nov 10:15 AM PST
Extended Forecast for

Grass Valley CA

  • Today

    Today: Showers and possibly a thunderstorm. Widespread haze before 11am. High near 55. South wind 11 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 55 °F

    Showers

  • Tonight

    Tonight: Showers likely, mainly before 9pm. Mostly cloudy, with a low around 44. South wind 5 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 60. Light and variable wind.

    High: 60 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 10pm. Mostly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Slight Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers before 10am. Partly sunny, with a high near 62. Calm wind.

    High: 62 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm. Widespread haze before 11am. High near 55. South wind 11 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Showers likely, mainly before 9pm. Mostly cloudy, with a low around 44. South wind 5 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 60. Light and variable wind.
Thursday Night
A 20 percent chance of showers after 10pm. Mostly cloudy, with a low around 47. Calm wind.
Friday
A 20 percent chance of showers before 10am. Partly sunny, with a high near 62. Calm wind.
Friday Night
Mostly clear, with a low around 46.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Partly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 50.
Veterans Day
Mostly sunny, with a high near 69.
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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:
1:20 am PST Nov 5, 2025
Forecast Valid:
10am PST Nov 5, 2025-6pm PST Nov 11, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation