Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

KF6YUA Sebastopol (AR323)

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

NA

43°F

6°C

Humidity 99%
Wind Speed S 1 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 43°F (6°C)
Visibility NA
Last update 19 Jan 05:41 AM PST
Extended Forecast for

3 Miles S Cotati CA

  • M.L.King Day

    M.L.King Day: Areas of dense fog before 11am.  Otherwise, mostly sunny, with a high near 63. Light and variable wind.

    High: 63 °F

    Areas Dense
    Fog then
    Mostly Sunny

  • Tonight

    Tonight: Areas of fog.  Otherwise, increasing clouds, with a low around 39. Calm wind.

    Low: 39 °F

    Areas Fog

  • Tuesday

    Tuesday: Patchy fog before 11am.  Otherwise, partly sunny, with a high near 63. Light east wind.

    High: 63 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Areas of fog.  Otherwise, mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Areas Fog

  • Wednesday

    Wednesday: Areas of fog before 11am.  Otherwise, mostly cloudy, with a high near 61. Calm wind.

    High: 61 °F

    Areas Fog
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: Areas of fog.  Otherwise, mostly cloudy, with a low around 42.

    Low: 42 °F

    Areas Fog

  • Thursday

    Thursday: Areas of fog before 10am.  Otherwise, mostly sunny, with a high near 61.

    High: 61 °F

    Areas Fog
    then Sunny

  • Thursday Night

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

    Low: 41 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before noon.  Otherwise, mostly sunny, with a high near 60.

    High: 60 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

M.L.King Day
Areas of dense fog before 11am. Otherwise, mostly sunny, with a high near 63. Light and variable wind.
Tonight
Areas of fog. Otherwise, increasing clouds, with a low around 39. Calm wind.
Tuesday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 63. Light east wind.
Tuesday Night
Areas of fog. Otherwise, mostly cloudy, with a low around 42. Calm wind.
Wednesday
Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 61. Calm wind.
Wednesday Night
Areas of fog. Otherwise, mostly cloudy, with a low around 42.
Thursday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 61.
Thursday Night
Patchy fog. Otherwise, partly cloudy, with a low around 41.
Friday
Patchy fog before noon. Otherwise, mostly sunny, with a high near 60.
Friday Night
Patchy fog. Otherwise, partly cloudy, with a low around 41.
Saturday
Patchy fog. Otherwise, mostly sunny, with a high near 59.
Saturday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 40.
Sunday
Areas of fog. Otherwise, partly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Cotati CA
 38.29°N 122.69°W (Elev. 226 ft)
12:26 am PST Jan 19, 2026
5am PST Jan 19, 2026-6pm PST Jan 25, 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