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

STONYFORD (SYWC1)

Lat: 39.35523°NLon: 122.65831°WElev: 1540.0ft.

NA

40°F

4°C

Humidity 91%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 08 Dec 06:26 PM PST
Extended Forecast for

17 Miles SW Willows CA

  • Tonight

    Tonight: Widespread haze. Patchy fog before midnight, then patchy fog after 1am.  Otherwise, partly cloudy, with a low around 41. Light and variable wind.

    Low: 41 °F

    Patchy Fog

  • Tuesday

    Tuesday: Widespread haze before noon. Areas of fog before 9am.  Otherwise, sunny, with a high near 51. Light and variable wind becoming east northeast around 5 mph.

    High: 51 °F

    Areas Fog
    then Sunny

  • Tuesday Night

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

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 62. Northwest wind around 6 mph becoming north northeast in the afternoon.

    High: 62 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45. West northwest wind 3 to 5 mph.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 66.

    High: 66 °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 65.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Widespread haze. Patchy fog before midnight, then patchy fog after 1am. Otherwise, partly cloudy, with a low around 41. Light and variable wind.
Tuesday
Widespread haze before noon. Areas of fog before 9am. Otherwise, sunny, with a high near 51. Light and variable wind becoming east northeast around 5 mph.
Tuesday Night
Mostly clear, with a low around 46. West northwest wind around 5 mph.
Wednesday
Sunny, with a high near 62. Northwest wind around 6 mph becoming north northeast in the afternoon.
Wednesday Night
Mostly clear, with a low around 45. West northwest wind 3 to 5 mph.
Thursday
Sunny, with a high near 66.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 65.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 61.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Partly sunny, with a high near 57.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 41.
Monday
A chance of showers. Partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SW Willows CA
 39.36°N 122.42°W (Elev. 801 ft)
1:20 pm PST Dec 8, 2025
7pm PST Dec 8, 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