Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >

Current conditions at

KF6YUA Sebastopol (AR323)

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

NA

40°F

4°C

Humidity 99%
Wind Speed SE 2 MPH
Barometer 30.36 in (1028.11 mb)
Dewpoint 40°F (4°C)
Visibility NA
Last update 29 Dec 01:07 AM PST
Extended Forecast for

4 Miles WSW Santa Rosa CA

Cold Weather Advisory until December 29, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory until December 29, 09:00am

    NOW until 9:00am Mon

    Cold Weather Advisory

  • Overnight

    Low: 35 °F

    Patchy Frost

  • Monday

    Monday: Areas of frost before 9am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 58. Calm wind.

    High: 58 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Patchy fog between 10pm and midnight. Areas of frost after 5am.  Otherwise, mostly clear, with a low around 36. Calm wind.

    Low: 36 °F

    Patchy Fog
    then Areas
    Frost

  • Tuesday

    Tuesday: Patchy fog before 7am. Areas of frost before 8am.  Otherwise, mostly sunny, with a high near 57. Light east northeast wind.

    High: 57 °F

    Areas Frost
    and Patchy
    Fog then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of rain after 10am.  Mostly cloudy, with a high near 54. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 10pm.  Cloudy, with a low around 43. Chance of precipitation is 60%.

    Low: 43 °F

    Rain Likely

  • New Year's Day

    New Year's Day: Rain likely.  Cloudy, with a high near 52.

    High: 52 °F

    Rain Likely

Detailed Forecast

Overnight
Patchy frost after 2am. Otherwise, partly cloudy, with a low around 35. Calm wind.
Monday
Areas of frost before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 58. Calm wind.
Monday Night
Patchy fog between 10pm and midnight. Areas of frost after 5am. Otherwise, mostly clear, with a low around 36. Calm wind.
Tuesday
Patchy fog before 7am. Areas of frost before 8am. Otherwise, mostly sunny, with a high near 57. Light east northeast wind.
Tuesday Night
Mostly cloudy, with a low around 39. Calm wind.
Wednesday
A 30 percent chance of rain after 10am. Mostly cloudy, with a high near 54. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain likely, mainly after 10pm. Cloudy, with a low around 43. Chance of precipitation is 60%.
New Year's Day
Rain likely. Cloudy, with a high near 52.
Thursday Night
Rain likely. Cloudy, with a low around 48.
Friday
Rain likely. Cloudy, with a high near 55.
Friday Night
Rain likely. Cloudy, with a low around 46.
Saturday
Rain likely. Cloudy, with a high near 54.
Saturday Night
Rain likely. Mostly cloudy, with a low around 45.
Sunday
Rain likely. Mostly cloudy, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Santa Rosa CA
 38.42°N 122.75°W (Elev. 102 ft)
12:27 am PST Dec 29, 2025
1am PST Dec 29, 2025-6pm PST Jan 4, 2026
 
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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