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

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

Lat: 38.5°NLon: 122.81667°WElev: 125.0ft.

Clear

45°F

7°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 09 Dec 04:53 PM PST
Extended Forecast for

Angwin CA

  • Tonight

    Tonight: Clear, with a low around 47. Light north northwest wind.

    Low: 47 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66. Light north northeast wind.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 47. Light north wind.

    Low: 47 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 67. Light northeast wind.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. Light north wind.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 47. Light north northwest wind.
Wednesday
Sunny, with a high near 66. Light north northeast wind.
Wednesday Night
Clear, with a low around 47. Light north wind.
Thursday
Sunny, with a high near 67. Light northeast wind.
Thursday Night
Mostly clear, with a low around 45. Light north wind.
Friday
Sunny, with a high near 64.
Friday Night
Mostly clear, with a low around 43.
Saturday
Sunny, with a high near 61.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Mostly sunny, with a high near 58.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 46.
Monday
A chance of rain. Partly sunny, with a high near 58.
Monday Night
A chance of rain. Mostly cloudy, with a low around 49.
Tuesday
A chance of rain. Partly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
Angwin CA
 38.59°N 122.42°W (Elev. 1450 ft)
12:26 pm PST Dec 9, 2025
5pm 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