Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

Current conditions at

READER RANCH (RRRC1)

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

NA

59°F

15°C

Humidity 59%
Wind Speed SW 1 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 09 Dec 03:13 PM PST
Extended Forecast for

3 Miles NNW Penn Valley CA

  • Tonight

    Tonight: Widespread haze before 10pm, then widespread haze after 11pm. Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Haze

  • Wednesday

    Wednesday: Widespread haze before noon. Sunny, with a high near 50. Light and variable wind.

    High: 50 °F

    Haze then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 51. Calm wind.

    High: 51 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 51.

    High: 51 °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 52.

    High: 52 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Widespread haze before 10pm, then widespread haze after 11pm. Mostly clear, with a low around 42. Calm wind.
Wednesday
Widespread haze before noon. Sunny, with a high near 50. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 45. Calm wind.
Thursday
Sunny, with a high near 51. Calm wind.
Thursday Night
Mostly clear, with a low around 45. Calm wind.
Friday
Sunny, with a high near 51.
Friday Night
Mostly clear, with a low around 44.
Saturday
Sunny, with a high near 52.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Mostly sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 43.
Monday
A slight chance of showers. Partly sunny, with a high near 55.
Monday Night
A chance of showers. Mostly cloudy, with a low around 47.
Tuesday
A chance of showers. Partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Penn Valley CA
 39.23°N 121.22°W (Elev. 1401 ft)
1:21 pm PST Dec 9, 2025
3pm 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