National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Great Lakes Snow through Friday; Watching Potential for Major Winter Storm Late Week into this Weekend

Heavy lake effect snow will continue in the Great Lakes into Wednesday before another storm brings a widespread general snow followed by another round of heavy lake effect snow. A wide-ranging winter storm will produce great swaths of heavy snow, sleet, and treacherous freezing rain from the southern Rockies/Plains and Mid-South starting Friday and shifting toward the East Coast through Sunday. Read More >

Current conditions at

KF6YUA Sebastopol (AR323)

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

NA

51°F

11°C

Humidity 87%
Wind Speed ESE 0 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 47°F (8°C)
Visibility NA
Last update 20 Jan 01:23 PM PST
Extended Forecast for

3 Miles S Cotati CA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 59. Light south southeast wind.

    High: 59 °F

    Mostly Cloudy

  • Tonight

    Tonight: Patchy fog after 7pm. Otherwise, cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Patchy Fog

  • Wednesday

    Wednesday: Areas of fog before 11am. Otherwise, cloudy, with a high near 58. Calm wind.

    High: 58 °F

    Areas Fog
    then Cloudy

  • Wednesday Night

    Wednesday Night: Widespread fog, mainly after 2am. Otherwise, cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Fog

  • Thursday

    Thursday: Widespread fog, mainly before 10am. Otherwise, partly sunny, with a high near 60. Light and variable wind.

    High: 60 °F

    Fog then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Widespread fog, mainly between 1am and 3am. Otherwise, mostly cloudy, with a low around 43.

    Low: 43 °F

    Fog

  • Friday

    Friday: Areas of fog before 1pm. Otherwise, mostly sunny, with a high near 60.

    High: 60 °F

    Areas Fog

  • Friday Night

    Friday Night: Patchy fog. Otherwise, partly cloudy, with a low around 40.

    Low: 40 °F

    Patchy Fog

  • Saturday

    Saturday: Areas of fog before 11am. Otherwise, mostly sunny, with a high near 60.

    High: 60 °F

    Areas Fog
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 59. Light south southeast wind.
Tonight
Patchy fog after 7pm. Otherwise, cloudy, with a low around 43. Calm wind.
Wednesday
Areas of fog before 11am. Otherwise, cloudy, with a high near 58. Calm wind.
Wednesday Night
Widespread fog, mainly after 2am. Otherwise, cloudy, with a low around 44. Calm wind.
Thursday
Widespread fog, mainly before 10am. Otherwise, partly sunny, with a high near 60. Light and variable wind.
Thursday Night
Widespread fog, mainly between 1am and 3am. Otherwise, mostly cloudy, with a low around 43.
Friday
Areas of fog before 1pm. Otherwise, mostly sunny, with a high near 60.
Friday Night
Patchy fog. Otherwise, partly cloudy, with a low around 40.
Saturday
Areas of fog before 11am. Otherwise, mostly sunny, with a high near 60.
Saturday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 40.
Sunday
Areas of fog. Otherwise, mostly cloudy, with a high near 58.
Sunday Night
Widespread fog. Otherwise, mostly cloudy, with a low around 41.
Monday
Areas of fog. Otherwise, partly sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Cotati CA
 38.29°N 122.69°W (Elev. 226 ft)
Last Update:
12:26 pm PST Jan 20, 2026
Forecast Valid:
1pm PST Jan 20, 2026-6pm PST Jan 26, 2026
 
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Additional Resources

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