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

57°F

14°C

Humidity 73%
Wind Speed ENE 2 MPH
Barometer 30.31 in (1026.41 mb)
Dewpoint 48°F (9°C)
Visibility NA
Last update 28 Dec 02:41 PM PST
Extended Forecast for

Graton CA

Cold Weather Advisory December 29, 01:00am until December 29, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  • This Afternoon

    This Afternoon: Sunny, with a high near 56. Calm wind.

    High: 56 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 7pm. Patchy frost after 4am.  Otherwise, mostly clear, with a low around 36. Calm wind.

    Low: 36 °F

    Patchy Fog
    then Patchy
    Frost and
    Areas Fog

  • Monday

    Monday: Areas of dense fog before 9am. Patchy frost before 9am.  Otherwise, sunny, with a high near 57. Calm wind.

    High: 57 °F

    Patchy Frost
    and Areas
    Dense Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog before 4am, then patchy fog after 5am.  Otherwise, mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy dense fog before 10am.  Otherwise, sunny, with a high near 58. Calm wind.

    High: 58 °F

    Patchy Dense
    Fog then
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog before 3am.  Otherwise, mostly cloudy, with a low around 39.

    Low: 39 °F

    Patchy Fog

  • Wednesday

    Wednesday: A 10 percent chance of rain after 4pm.  Patchy fog before 8am.  Otherwise, mostly cloudy, with a high near 57.

    High: 57 °F

    Patchy Fog
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain, mainly after 10pm.  Patchy fog.  Otherwise, mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain
    and Patchy
    Fog

  • New Year's Day

    New Year's Day: Rain likely, mainly after 10am.  Patchy fog before 1pm.  Otherwise, cloudy, with a high near 53.

    High: 53 °F

    Rain Likely
    and Patchy
    Fog

Detailed Forecast

This Afternoon
Sunny, with a high near 56. Calm wind.
Tonight
Patchy fog after 7pm. Patchy frost after 4am. Otherwise, mostly clear, with a low around 36. Calm wind.
Monday
Areas of dense fog before 9am. Patchy frost before 9am. Otherwise, sunny, with a high near 57. Calm wind.
Monday Night
Patchy fog before 4am, then patchy fog after 5am. Otherwise, mostly clear, with a low around 37. Calm wind.
Tuesday
Patchy dense fog before 10am. Otherwise, sunny, with a high near 58. Calm wind.
Tuesday Night
Patchy fog before 3am. Otherwise, mostly cloudy, with a low around 39.
Wednesday
A 10 percent chance of rain after 4pm. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 57.
Wednesday Night
A chance of rain, mainly after 10pm. Patchy fog. Otherwise, mostly cloudy, with a low around 43.
New Year's Day
Rain likely, mainly after 10am. Patchy fog before 1pm. Otherwise, cloudy, with a high near 53.
Thursday Night
Rain likely. Patchy fog after 7pm. Otherwise, cloudy, with a low around 48.
Friday
Rain likely. Mostly cloudy, with a high near 56.
Friday Night
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 46.
Saturday
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
Graton CA
 38.43°N 122.84°W (Elev. 79 ft)
12:27 pm PST Dec 28, 2025
2pm PST Dec 28, 2025-6pm PST Jan 3, 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