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 51%
Wind Speed N 0 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 03 Nov 01:35 AM PST
Extended Forecast for

Grass Valley CA

  • Overnight

    Overnight: Clear, with a steady temperature around 53. Light east southeast wind.

    Low: 53 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 68. South wind around 6 mph.

    High: 68 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 48. Southeast wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 65. Light and variable wind becoming south around 6 mph in the afternoon.

    High: 65 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Showers, mainly after 4am. The rain could be heavy at times. Low around 47. Southeast wind 6 to 9 mph. Chance of precipitation is 80%.

    Low: 47 °F

    Chance
    Showers then
    Heavy Rain

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 10am. Some of the storms could produce heavy rainfall. High near 55. Chance of precipitation is 100%.

    High: 55 °F

    Heavy Rain

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 10pm, then a chance of showers. Low around 46. Chance of precipitation is 80%.

    Low: 46 °F

    Showers then
    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers, mainly after 4am. Partly cloudy, with a low around 46.

    Low: 46 °F

    Chance
    Showers

Detailed Forecast

Overnight
Clear, with a steady temperature around 53. Light east southeast wind.
Monday
Sunny, with a high near 68. South wind around 6 mph.
Monday Night
Partly cloudy, with a low around 48. Southeast wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 65. Light and variable wind becoming south around 6 mph in the afternoon.
Tuesday Night
Showers, mainly after 4am. The rain could be heavy at times. Low around 47. Southeast wind 6 to 9 mph. Chance of precipitation is 80%.
Wednesday
Showers, with thunderstorms also possible after 10am. Some of the storms could produce heavy rainfall. High near 55. Chance of precipitation is 100%.
Wednesday Night
Showers and possibly a thunderstorm before 10pm, then a chance of showers. Low around 46. Chance of precipitation is 80%.
Thursday
Mostly sunny, with a high near 59.
Thursday Night
A chance of showers, mainly after 4am. Partly cloudy, with a low around 46.
Friday
A 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
Partly cloudy, with a low around 49.
Sunday
A slight chance of showers. Partly sunny, with a high near 66.
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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 am PST Nov 3, 2025
Forecast Valid:
2am PST Nov 3, 2025-6pm PST Nov 9, 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