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

Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

64°F

18°C

Humidity 59%
Wind Speed WNW 5 MPH
Barometer 30.34 in (1027.43 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 28 Jan 03:20 PM PST
Extended Forecast for

5 Miles SSE Sonoma CA

  • Tonight

    Tonight: Patchy dense fog after 9pm. Otherwise, increasing clouds, with a low around 40. Light and variable wind.

    Low: 40 °F

    Patchy Dense
    Fog

  • Thursday

    Thursday: Areas of dense fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 62. Light and variable wind.

    High: 62 °F

    Areas Dense
    Fog then
    Sunny

  • Thursday Night

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

    Low: 41 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 62. Calm wind becoming east around 6 mph in the afternoon.

    High: 62 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

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

    Low: 42 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 43.

    Low: 43 °F

    Patchy Fog

  • Sunday

    Sunday: Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 60.

    High: 60 °F

    Areas Fog
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy
    then Patchy
    Fog

Detailed Forecast

Tonight
Patchy dense fog after 9pm. Otherwise, increasing clouds, with a low around 40. Light and variable wind.
Thursday
Areas of dense fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 62. Light and variable wind.
Thursday Night
Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 41. Calm wind.
Friday
Patchy fog before 10am. 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. Calm wind.
Saturday
Partly sunny, with a high near 62.
Saturday Night
Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 43.
Sunday
Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 60.
Sunday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 42.
Monday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 62.
Monday Night
Patchy fog. Otherwise, mostly clear, with a low around 42.
Tuesday
Patchy fog. Otherwise, sunny, with a high near 64.
Tuesday Night
Patchy fog. Otherwise, mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSE Sonoma CA
 38.22°N 122.44°W (Elev. 3 ft)
Last Update:
12:26 pm PST Jan 28, 2026
Forecast Valid:
3pm PST Jan 28, 2026-6pm PST Feb 4, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation