Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

SAC NWR (NWRC1)

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

NA

48°F

9°C

Humidity 100%
Wind Speed SSE 1 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 20 Jan 09:29 PM PST
Extended Forecast for

8 Miles ENE Williams CA

  • Tonight

    Tonight: Areas of dense fog before 3am, then widespread dense fog after 5am.  Otherwise, cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Dense Fog

  • Wednesday

    Wednesday: Widespread dense fog before 11am.  Otherwise, cloudy, with a high near 53. Calm wind.

    High: 53 °F

    Dense Fog
    then Cloudy

  • Wednesday Night

    Wednesday Night: Cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Cloudy

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 60. Calm wind.

    High: 60 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Friday Night

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

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Saturday Night

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

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Tonight
Areas of dense fog before 3am, then widespread dense fog after 5am. Otherwise, cloudy, with a low around 44. Calm wind.
Wednesday
Widespread dense fog before 11am. Otherwise, cloudy, with a high near 53. Calm wind.
Wednesday Night
Cloudy, with a low around 46. Calm wind.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 60. Calm wind.
Thursday Night
Partly cloudy, with a low around 43. Calm wind.
Friday
Mostly sunny, with a high near 57.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Sunny, with a high near 57.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Mostly cloudy, with a high near 53.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
Partly sunny, with a high near 55.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
Partly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles ENE Williams CA
 39.22°N 122°W (Elev. 59 ft)
1:26 pm PST Jan 20, 2026
10pm PST Jan 20, 2026-6pm PST Jan 27, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database