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 SE 0 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 09 Dec 07:29 PM PST
Extended Forecast for

8 Miles ENE Williams CA

  • Tonight

    Tonight: Widespread haze. Patchy fog after 9pm.  Otherwise, mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Patchy Fog

  • Wednesday

    Wednesday: Widespread haze before 2pm. Widespread dense fog, mainly before 10am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 46. Light southeast wind.

    High: 46 °F

    Dense Fog
    then Haze

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 46. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 46 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 46.

    High: 46 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Tonight
Widespread haze. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 41. Calm wind.
Wednesday
Widespread haze before 2pm. Widespread dense fog, mainly before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 46. Light southeast wind.
Wednesday Night
Partly cloudy, with a low around 41. Calm wind.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 46. Calm wind becoming north northwest around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 40. Calm wind.
Friday
Mostly sunny, with a high near 45.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Partly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
A slight chance of showers. Mostly cloudy, with a high near 53.
Monday Night
A chance of showers. Mostly cloudy, with a low around 45.
Tuesday
A chance of showers. Partly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles ENE Williams CA
 39.22°N 122°W (Elev. 59 ft)
1:21 pm PST Dec 9, 2025
8pm 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