Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains tonight, crossing the Midwest and reaching the Gulf Coast Friday night. Dangerously cold temperatures will persist across the eastern U.S. into early February. There is increasing confidence for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

43°F

6°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.37 in (1028.45 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 29 Jan 08:15 AM PST
Extended Forecast for

5 Miles SSE Sonoma CA

Coastal Flood Advisory until February 1, 12:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory until February 1, 12:00pm

    NOW until 12:00pm Sun

    Coastal Flood Advisory

  • Today

    High: 62 °F

    Areas Fog
    then Sunny

  • Tonight

    Tonight: Patchy fog after 9pm.  Otherwise, mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, partly sunny, with a high near 62. Calm wind becoming east around 6 mph in the afternoon.

    High: 62 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 42. Light northeast wind.

    Low: 42 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Partly sunny, with a high near 62. East wind 3 to 6 mph.

    High: 62 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 9pm.  Otherwise, mostly cloudy, with a low around 44.

    Low: 44 °F

    Patchy Fog

  • Sunday

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

    High: 61 °F

    Areas Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 1am.  Otherwise, partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy
    then Patchy
    Fog

Detailed Forecast

Today
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 62. Light and variable wind.
Tonight
Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 41. Calm wind.
Friday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 62. Calm wind becoming east around 6 mph in the afternoon.
Friday Night
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 42. Light northeast wind.
Saturday
Partly sunny, with a high near 62. East wind 3 to 6 mph.
Saturday Night
Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 44.
Sunday
Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 61.
Sunday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 41.
Monday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 63.
Monday Night
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 41.
Tuesday
Areas of fog. Otherwise, sunny, with a high near 65.
Tuesday Night
Patchy fog. Otherwise, mostly clear, with a low around 41.
Wednesday
Patchy fog. Otherwise, sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Sonoma CA
 38.22°N 122.44°W (Elev. 3 ft)
12:26 am PST Jan 29, 2026
8am PST Jan 29, 2026-6pm PST Feb 4, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database