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

SAC NWR (NWRC1)

Lat: 39.41722°NLon: 122.1825°WElev: 120.0ft.

NA

44°F

7°C

Humidity 100%
Wind Speed S 2 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 09 Dec 05:29 PM PST
Extended Forecast for

11 Miles WSW Williams CA

  • Tonight

    Tonight: Widespread haze after midnight. Mostly clear, with a low around 45. West northwest wind 3 to 6 mph.

    Low: 45 °F

    Mostly Clear
    then Haze

  • Wednesday

    Wednesday: Widespread haze before noon. Sunny, with a high near 56. North wind around 5 mph becoming light and variable  in the afternoon.

    High: 56 °F

    Haze then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 46. West northwest wind 3 to 5 mph.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 57. North wind around 6 mph.

    High: 57 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. Northwest wind around 5 mph.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Friday Night

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

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Saturday Night

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

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Tonight
Widespread haze after midnight. Mostly clear, with a low around 45. West northwest wind 3 to 6 mph.
Wednesday
Widespread haze before noon. Sunny, with a high near 56. North wind around 5 mph becoming light and variable in the afternoon.
Wednesday Night
Mostly clear, with a low around 46. West northwest wind 3 to 5 mph.
Thursday
Sunny, with a high near 57. North wind around 6 mph.
Thursday Night
Mostly clear, with a low around 45. Northwest wind around 5 mph.
Friday
Sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
A chance of showers. Partly sunny, with a high near 53.
Monday Night
A chance of showers. Mostly cloudy, with a low around 46.
Tuesday
A chance of showers. Partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Williams CA
 39.12°N 122.33°W (Elev. 1522 ft)
1:21 pm PST Dec 9, 2025
5pm PST Dec 9, 2025-6pm PST Dec 16, 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