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.

light rain,mist

52°F

11°C

Humidity 96%
Wind Speed NNE 4 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 51°F (11°C)
Visibility 4.00 mi
Last update 27 Jan 08:54 PM PST
Extended Forecast for

5 Miles SSE Sonoma CA

  • Tonight

    Tonight: Rain likely, mainly before 10pm. Patchy fog between 3am and 5am. Otherwise, mostly cloudy, with a low around 46. South wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Rain Likely
    and Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 60. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 60 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 9pm. Otherwise, increasing clouds, with a low around 40. Calm wind.

    Low: 40 °F

    Patchy Fog

  • Thursday

    Thursday: Areas of fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 61. Light east northeast wind.

    High: 61 °F

    Areas Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 62.

    High: 62 °F

    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain after 4am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 44.

    Low: 44 °F

    Patchy Fog
    then Slight
    Chance Rain
    and Patchy
    Fog

Detailed Forecast

Tonight
Rain likely, mainly before 10pm. Patchy fog between 3am and 5am. Otherwise, mostly cloudy, with a low around 46. South wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 60. Calm wind becoming west northwest around 6 mph in the afternoon.
Wednesday Night
Patchy fog after 9pm. Otherwise, increasing clouds, with a low around 40. Calm wind.
Thursday
Areas of fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 61. Light east northeast wind.
Thursday Night
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 42. Calm wind.
Friday
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 62.
Friday Night
Mostly cloudy, with a low around 42.
Saturday
Partly sunny, with a high near 62.
Saturday Night
A slight chance of rain after 4am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 44.
Sunday
A chance of rain, mainly after 10am. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 59.
Sunday Night
A chance of rain. Patchy fog. Otherwise, mostly cloudy, with a low around 45.
Monday
Patchy fog. Otherwise, mostly sunny, with a high near 61.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 42.
Tuesday
Areas of fog. Otherwise, sunny, with a high near 63.
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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 27, 2026
Forecast Valid:
9pm PST Jan 27, 2026-6pm PST Feb 3, 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