Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. 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 NW 1 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 09 Dec 02:29 AM PST
Extended Forecast for

11 Miles WSW Williams CA

  • Overnight

    Overnight: Widespread haze. Areas of fog.  Otherwise, partly cloudy, with a low around 42. North northwest wind around 5 mph.

    Low: 42 °F

    Areas Fog

  • Tuesday

    Tuesday: Widespread haze before noon. Widespread fog, mainly before 7am.  Otherwise, sunny, with a high near 53. East northeast wind 3 to 5 mph.

    High: 53 °F

    Fog then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46. Northwest wind around 6 mph.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 60. Northwest wind around 6 mph becoming northeast in the afternoon.

    High: 60 °F

    Sunny

  • Wednesday Night

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

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Overnight
Widespread haze. Areas of fog. Otherwise, partly cloudy, with a low around 42. North northwest wind around 5 mph.
Tuesday
Widespread haze before noon. Widespread fog, mainly before 7am. Otherwise, sunny, with a high near 53. East northeast wind 3 to 5 mph.
Tuesday Night
Mostly clear, with a low around 46. Northwest wind around 6 mph.
Wednesday
Sunny, with a high near 60. Northwest wind around 6 mph becoming northeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 46. West northwest wind around 5 mph.
Thursday
Sunny, with a high near 61.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 59.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 43.
Monday
A chance of showers. Partly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Williams CA
 39.12°N 122.33°W (Elev. 1522 ft)
1:20 am PST Dec 9, 2025
3am PST Dec 9, 2025-6pm PST Dec 15, 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