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

SAC NWR (NWRC1)

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

NA

43°F

6°C

Humidity 100%
Wind Speed W 1 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 10 Dec 10:29 PM PST
Extended Forecast for

8 Miles ENE Williams CA

  • Tonight

    Tonight: Widespread dense fog, mainly after 1am.  Otherwise, mostly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Dense Fog

  • Thursday

    Thursday: Widespread dense fog, mainly before 9am.  Otherwise, partly sunny, with a high near 46. Calm wind becoming north around 5 mph.

    High: 46 °F

    Dense Fog
    then Mostly
    Sunny

  • Thursday Night

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

    Low: 40 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 45. Light north northwest wind.

    High: 45 °F

    Decreasing
    Clouds

  • Friday Night

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

    Low: 41 °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 38.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Widespread dense fog, mainly after 1am. Otherwise, mostly cloudy, with a low around 40. Calm wind.
Thursday
Widespread dense fog, mainly before 9am. Otherwise, partly sunny, with a high near 46. Calm wind becoming north around 5 mph.
Thursday Night
Partly cloudy, with a low around 40. Calm wind.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 45. Light north northwest wind.
Friday Night
Partly cloudy, with a low around 41. Calm wind.
Saturday
Mostly sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Partly sunny, with a high near 39.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
A slight chance of showers after 10am. Mostly cloudy, with a high near 53.
Monday Night
A chance of showers. Mostly cloudy, with a low around 47.
Tuesday
A chance of showers. Mostly cloudy, with a high near 58.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 49.
Wednesday
A chance of showers. Partly sunny, with a high near 60.
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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 10, 2025
11pm PST Dec 10, 2025-6pm PST Dec 17, 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