Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

KF6YUA Sebastopol (AR323)

Lat: 38.3803°NLon: 122.8242°WElev: 230.0ft.

NA

46°F

8°C

Humidity 99%
Wind Speed ESE 0 MPH
Barometer 30.39 in (1029.12 mb)
Dewpoint 46°F (8°C)
Visibility NA
Last update 08 Dec 12:25 PM PST
Extended Forecast for

3 Miles W Cotati CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 58. Calm wind becoming south southwest around 5 mph.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Patchy dense fog.  Otherwise, increasing clouds, with a low around 42. Calm wind.

    Low: 42 °F

    Patchy Dense
    Fog

  • Tuesday

    Tuesday: Areas of fog before noon.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 60. Light and variable wind.

    High: 60 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 1am.  Otherwise, partly cloudy, with a low around 43. Light north northeast wind.

    Low: 43 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Areas of fog before noon.  Otherwise, mostly sunny, with a high near 65. Light and variable wind.

    High: 65 °F

    Areas Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog.  Otherwise, mostly clear, with a low around 44.

    Low: 44 °F

    Patchy Fog

  • Thursday

    Thursday: Areas of fog before noon.  Otherwise, mostly sunny, with a high near 65.

    High: 65 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Areas of fog.  Otherwise, partly cloudy, with a low around 44.

    Low: 44 °F

    Areas Fog

  • Friday

    Friday: Patchy fog before 11am.  Otherwise, sunny, with a high near 65.

    High: 65 °F

    Patchy Fog
    then Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 58. Calm wind becoming south southwest around 5 mph.
Tonight
Patchy dense fog. Otherwise, increasing clouds, with a low around 42. Calm wind.
Tuesday
Areas of fog before noon. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 60. Light and variable wind.
Tuesday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 43. Light north northeast wind.
Wednesday
Areas of fog before noon. Otherwise, mostly sunny, with a high near 65. Light and variable wind.
Wednesday Night
Patchy fog. Otherwise, mostly clear, with a low around 44.
Thursday
Areas of fog before noon. Otherwise, mostly sunny, with a high near 65.
Thursday Night
Areas of fog. Otherwise, partly cloudy, with a low around 44.
Friday
Patchy fog before 11am. Otherwise, sunny, with a high near 65.
Friday Night
Areas of fog. Otherwise, partly cloudy, with a low around 42.
Saturday
Areas of fog. Otherwise, mostly sunny, with a high near 64.
Saturday Night
Areas of fog. Otherwise, partly cloudy, with a low around 43.
Sunday
Areas of fog. Otherwise, partly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Cotati CA
 38.33°N 122.76°W (Elev. 253 ft)
12:26 pm PST Dec 8, 2025
12pm PST Dec 8, 2025-6pm PST Dec 14, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database