Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Current conditions at

READER RANCH (RRRC1)

Lat: 39.30351°NLon: 121.11725°WElev: 1968.0ft.

NA

50°F

10°C

Humidity 61%
Wind Speed NNE 4 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Wind Chill49°F (9°C)
Last update 10 Dec 04:13 AM PST
Extended Forecast for

9 Miles NNW Grass Valley CA

  • Today

    Today: Widespread haze before 11am. Sunny, with a high near 64. Light and variable wind.

    High: 64 °F

    Haze then
    Sunny

  • Tonight

    Tonight: Clear, with a low around 44. Light northeast wind.

    Low: 44 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 65. Calm wind.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 43. East northeast wind 3 to 5 mph.

    Low: 43 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 67. Light and variable wind.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

Detailed Forecast

Today
Widespread haze before 11am. Sunny, with a high near 64. Light and variable wind.
Tonight
Clear, with a low around 44. Light northeast wind.
Thursday
Sunny, with a high near 65. Calm wind.
Thursday Night
Clear, with a low around 43. East northeast wind 3 to 5 mph.
Friday
Sunny, with a high near 67. Light and variable wind.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Sunny, with a high near 65.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 42.
Monday
A chance of showers. Partly sunny, with a high near 61.
Monday Night
A chance of showers. Mostly cloudy, with a low around 46.
Tuesday
A chance of showers. Partly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNW Grass Valley CA
 39.35°N 121.14°W (Elev. 1998 ft)
1:21 am PST Dec 10, 2025
5am PST Dec 10, 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