Winter Weather Across Portions of the Mid-Atlantic; Heavy Rain Along the Gulf Coast and Southeast

A storm system will continue to slowly move through the Gulf Coast and Southeast U.S. over the next couple of days, bringing a heavy rainfall threat through the weekend. Isolated instances of flooding may occur. On the north side of this storm system, colder air will support areas of mixed wintry precipitation and light snow from the Tennessee Valley to the Mid-Atlantic Friday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Mist

39°F

4°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.27 in (1025.06 mb)
Dewpoint 39°F (4°C)
Visibility 4.00 mi
Last update 04 Dec 09:35 PM PST
Extended Forecast for

Sonoma CA

Coastal Flood Advisory December 4, 09:56pm until December 7, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory December 4, 09:56pm until December 7, 03:00pm

    NOW until 3:00pm Sun

    Coastal Flood Advisory

  • Tonight

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, sunny, with a high near 63. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 63 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Patchy fog after 10pm.  Otherwise, partly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Patchy Fog

  • Saturday

    Saturday: Areas of fog before 11am.  Otherwise, mostly sunny, with a high near 64. Calm wind.

    High: 64 °F

    Areas Fog
    then Sunny

  • Saturday Night

    Saturday Night: Areas of fog after 4am.  Otherwise, partly cloudy, with a low around 43. North wind around 5 mph becoming calm  in the evening.

    Low: 43 °F

    Mostly Clear
    then Areas
    Fog

  • Sunday

    Sunday: Areas of fog before 11am.  Otherwise, partly sunny, with a high near 63.

    High: 63 °F

    Areas Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 9pm.  Otherwise, partly cloudy, with a low around 42.

    Low: 42 °F

    Patchy Fog

  • Monday

    Monday: Areas of fog before 11am.  Otherwise, mostly sunny, with a high near 64.

    High: 64 °F

    Areas Fog
    then Mostly
    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 39. Calm wind.
Friday
Patchy fog before 9am. Otherwise, sunny, with a high near 63. Calm wind becoming south southwest around 5 mph in the afternoon.
Friday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 43. Calm wind.
Saturday
Areas of fog before 11am. Otherwise, mostly sunny, with a high near 64. Calm wind.
Saturday Night
Areas of fog after 4am. Otherwise, partly cloudy, with a low around 43. North wind around 5 mph becoming calm in the evening.
Sunday
Areas of fog before 11am. Otherwise, partly sunny, with a high near 63.
Sunday Night
Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 42.
Monday
Areas of fog before 11am. Otherwise, mostly sunny, with a high near 64.
Monday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 43.
Tuesday
Areas of fog before 10am. Otherwise, partly sunny, with a high near 65.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 45.
Wednesday
Areas of fog. Otherwise, mostly sunny, with a high near 66.
Wednesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 45.
Thursday
Patchy fog. Otherwise, mostly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
Sonoma CA
 38.29°N 122.46°W (Elev. 72 ft)
7:35 pm PST Dec 4, 2025
9pm PST Dec 4, 2025-6pm PST Dec 11, 2025
 
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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