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

Cold Front Moving Through the Northeast U.S. Monday; Atmospheric River to Impact the Pacific Northwest Midweek

A cold front will cross the Great Lakes and Northeast U.S. through Monday with gusty winds and areas of rain showers. A strong atmospheric river is expected to move into the Pacific Northwest by midweek bringing a threat for moderate to heavy rainfall, gusty winds, and mountain snows for parts of Washington, Oregon, northern California, and the Sierra Nevada. Read More >

Current conditions at

Nevada County Air Park (KGOO)

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

Clear

61°F

16°C

Humidity 59%
Wind Speed N 0 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 02 Nov 06:55 PM PST
Extended Forecast for

Grass Valley CA

  • Tonight

    Tonight: Mostly clear, with a low around 50. Light east southeast wind.

    Low: 50 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67. South wind around 6 mph.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: A 10 percent chance of showers after 4am. Partly cloudy, with a low around 48. South southeast wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before 10am. Partly sunny, with a high near 64. Light and variable wind becoming south around 5 mph in the afternoon.

    High: 64 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 10pm. Mostly cloudy, with a low around 48. Southeast wind 6 to 8 mph.

    Low: 48 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 1pm. High near 53. Chance of precipitation is 100%.

    High: 53 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 10pm, then a chance of showers. Low around 47. Chance of precipitation is 80%.

    Low: 47 °F

    Showers then
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers before 10am. Mostly sunny, with a high near 60.

    High: 60 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers after 4am. Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 50. Light east southeast wind.
Monday
Sunny, with a high near 67. South wind around 6 mph.
Monday Night
A 10 percent chance of showers after 4am. Partly cloudy, with a low around 48. South southeast wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers before 10am. Partly sunny, with a high near 64. Light and variable wind becoming south around 5 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers after 10pm. Mostly cloudy, with a low around 48. Southeast wind 6 to 8 mph.
Wednesday
Showers, with thunderstorms also possible after 1pm. High near 53. Chance of precipitation is 100%.
Wednesday Night
Showers and possibly a thunderstorm before 10pm, then a chance of showers. Low around 47. Chance of precipitation is 80%.
Thursday
A slight chance of showers before 10am. Mostly sunny, with a high near 60.
Thursday Night
A slight chance of showers after 4am. Partly cloudy, with a low around 47.
Friday
A slight chance of showers before 10am. Partly sunny, with a high near 61.
Friday Night
Partly cloudy, with a low around 45.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 48.
Sunday
A chance of showers. Mostly cloudy, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grass Valley CA
 39.23°N 121.08°W (Elev. 2598 ft)
Last Update:
1:21 pm PST Nov 2, 2025
Forecast Valid:
7pm PST Nov 2, 2025-6pm PST Nov 9, 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