Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Current conditions at

Santa Rosa, Santa Rosa Sonoma County Airport (KSTS)

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

Fog

41°F

5°C

Humidity 95%
Wind Speed N 0 MPH
Barometer 30.2 in (1022.69 mb)
Dewpoint 40°F (4°C)
Visibility 0.25 mi
Last update 11 Dec 09:38 AM PST
Extended Forecast for

Santa Rosa CA

  • Today

    Today: Widespread dense fog, mainly before 11am.  Otherwise, sunny, with a high near 58. Calm wind.

    High: 58 °F

    Dense Fog
    then Sunny

  • Tonight

    Tonight: Patchy dense fog.  Otherwise, partly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Patchy Dense
    Fog

  • Friday

    Friday: Areas of fog before 11am.  Otherwise, sunny, with a high near 60. Calm wind.

    High: 60 °F

    Areas Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 64. Calm wind becoming south around 5 mph in the afternoon.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy fog.  Otherwise, partly cloudy, with a low around 41.

    Low: 41 °F

    Patchy Fog

  • Sunday

    Sunday: Areas of fog before 11am.  Otherwise, mostly sunny, with a high near 62.

    High: 62 °F

    Areas Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 9pm.  Otherwise, mostly cloudy, with a low around 43.

    Low: 43 °F

    Patchy Fog

  • Monday

    Monday: Areas of fog before 11am.  Otherwise, mostly cloudy, with a high near 62.

    High: 62 °F

    Areas Fog
    then Mostly
    Cloudy

Detailed Forecast

Today
Widespread dense fog, mainly before 11am. Otherwise, sunny, with a high near 58. Calm wind.
Tonight
Patchy dense fog. Otherwise, partly cloudy, with a low around 42. Calm wind.
Friday
Areas of fog before 11am. Otherwise, sunny, with a high near 60. Calm wind.
Friday Night
Mostly clear, with a low around 41. Calm wind.
Saturday
Sunny, with a high near 64. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 41.
Sunday
Areas of fog before 11am. Otherwise, mostly sunny, with a high near 62.
Sunday Night
Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 43.
Monday
Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 62.
Monday Night
A chance of rain. Widespread fog, mainly after 4am. Otherwise, mostly cloudy, with a low around 49.
Tuesday
A chance of rain. Widespread fog. Otherwise, mostly cloudy, with a high near 60.
Tuesday Night
A chance of rain. Patchy fog. Otherwise, cloudy, with a low around 50.
Wednesday
A chance of rain. Areas of fog. Otherwise, mostly cloudy, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
Santa Rosa CA
 38.45°N 122.73°W (Elev. 131 ft)
2:25 am PST Dec 11, 2025
9am PST Dec 11, 2025-6pm PST Dec 17, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database