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

Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

Lat: 38.2075°NLon: 122.27944°WElev: 33.0ft.

haze

61°F

16°C

Humidity 63%
Wind Speed ESE 8 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 16 Jan 04:00 PM PST
Extended Forecast for

Sonoma CA

  • Tonight

    Tonight: Mostly clear, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 63. Calm wind becoming east southeast around 6 mph in the afternoon.

    High: 63 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 64. Light east wind.

    High: 64 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Patchy fog before 8am. Otherwise, sunny, with a high near 63.

    High: 63 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, sunny, with a high near 62.

    High: 62 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 40.

    Low: 40 °F

    Patchy Fog

Detailed Forecast

Tonight
Mostly clear, with a low around 38. Calm wind.
Saturday
Mostly sunny, with a high near 63. Calm wind becoming east southeast around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 41. Calm wind.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 64. Light east wind.
Sunday Night
Mostly clear, with a low around 40. Calm wind.
M.L.King Day
Patchy fog before 8am. Otherwise, sunny, with a high near 63.
Monday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 39.
Tuesday
Patchy fog before 10am. Otherwise, sunny, with a high near 62.
Tuesday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 40.
Wednesday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 60.
Wednesday Night
Widespread fog. Otherwise, mostly cloudy, with a low around 41.
Thursday
Widespread fog. Otherwise, mostly sunny, with a high near 58.
Thursday Night
Areas of fog. Otherwise, mostly cloudy, with a low around 41.
Friday
Widespread fog. Otherwise, mostly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sonoma CA
 38.29°N 122.46°W (Elev. 72 ft)
Last Update:
12:26 pm PST Jan 16, 2026
Forecast Valid:
4pm PST Jan 16, 2026-6pm PST Jan 23, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation