Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

Nevada County Air Park (KGOO)

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

Clear

55°F

13°C

Humidity 58%
Wind Speed N 0 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 09 Dec 07:35 PM PST
Extended Forecast for

2 Miles SSE Grass Valley CA

  • Tonight

    Tonight: Clear, with a low around 46. North northeast wind 3 to 5 mph.

    Low: 46 °F

    Clear

  • Wednesday

    Wednesday: Widespread haze before 11am. Sunny, with a high near 63. Calm wind.

    High: 63 °F

    Haze then
    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 47. Light east northeast wind.

    Low: 47 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 65. Light and variable wind.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 45. East northeast wind 3 to 5 mph.

    Low: 45 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Saturday Night

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

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 46. North northeast wind 3 to 5 mph.
Wednesday
Widespread haze before 11am. Sunny, with a high near 63. Calm wind.
Wednesday Night
Clear, with a low around 47. Light east northeast wind.
Thursday
Sunny, with a high near 65. Light and variable wind.
Thursday Night
Clear, with a low around 45. East northeast wind 3 to 5 mph.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 44.
Saturday
Sunny, with a high near 63.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Mostly sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 42.
Monday
A slight chance of showers. Partly sunny, with a high near 56.
Monday Night
A chance of showers. Mostly cloudy, with a low around 45.
Tuesday
A chance of showers. Partly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Grass Valley CA
 39.19°N 121.04°W (Elev. 2999 ft)
1:21 pm PST Dec 9, 2025
7pm PST Dec 9, 2025-6pm PST Dec 16, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database