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

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

Novato / Gnoss Field (KDVO)

Lat: 38.14178°NLon: 122.55463°WElev: 3.0ft.

Mist

43°F

6°C

Humidity 100%
Wind Speed S 5 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 43°F (6°C)
Visibility 1.25 mi
Wind Chill40°F (4°C)
Last update 21 Jan 07:35 AM PST
Extended Forecast for

Sonoma CA

  • Today

    Today: Patchy fog before 9am.  Otherwise, cloudy, with a high near 57. Calm wind.

    High: 57 °F

    Patchy Fog
    then Cloudy

  • Tonight

    Tonight: A 20 percent chance of rain after 10pm.  Patchy fog before midnight, then patchy fog after 5am.  Otherwise, cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Thursday

    Thursday: Areas of fog before 10am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 60. Light and variable wind.

    High: 60 °F

    Areas Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after midnight.  Otherwise, mostly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

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

    High: 58 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Patchy frost before 7am.  Otherwise, mostly cloudy, with a high near 56.

    High: 56 °F

    Patchy Frost
    then Mostly
    Cloudy

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, cloudy, with a high near 57. Calm wind.
Tonight
A 20 percent chance of rain after 10pm. Patchy fog before midnight, then patchy fog after 5am. Otherwise, cloudy, with a low around 44. Calm wind.
Thursday
Areas of fog before 10am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 60. Light and variable wind.
Thursday Night
Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 43. Calm wind.
Friday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 58. Calm wind.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Patchy frost before 7am. Otherwise, mostly cloudy, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 37.
Monday
Partly sunny, with a high near 58.
Monday Night
Mostly cloudy, with a low around 37.
Tuesday
Mostly cloudy, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
Sonoma CA
 38.29°N 122.46°W (Elev. 72 ft)
2:13 am PST Jan 21, 2026
8am PST Jan 21, 2026-6pm PST Jan 27, 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