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

Dangerous Cold Persists through Monday; Wintry Weather from the Northern Plains to the Great Lakes

Bitter cold temperatures and dangerous wind chills will persist from Florida to the Northeast through Monday. Daily record low temperatures are forecast across the Southeast and Florida, with some all-time February low temperature records possible across Florida. An Alberta clipper will spread wintry precipitation across the Northern Plains today and into the upper Great Lakes into tonight. Read More >

Hazardous Weather Conditions

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

62°F

17°C

Humidity 60%
Wind Speed N 0 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 01 Feb 01:54 PM PST
Extended Forecast for

Sonoma CA

Coastal Flood Advisory February 2, 09:00am until February 2, 01:00pm
Click here for hazard details and duration
Coastal Flood Advisory

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 64. Light west northwest wind.

    High: 64 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy fog after 8pm. Otherwise, mostly clear, with a low around 40. Calm wind.

    Low: 40 °F

    Patchy Fog

  • Monday

    Monday: Areas of fog before 9am. Otherwise, sunny, with a high near 66. Calm wind.

    High: 66 °F

    Areas Fog
    then Sunny

  • Monday Night

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

    Low: 40 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 10am. Otherwise, sunny, with a high near 67. Calm wind becoming east northeast around 5 mph in the afternoon.

    High: 67 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, sunny, with a high near 66.

    High: 66 °F

    Patchy Fog
    then Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 64. Light west northwest wind.
Tonight
Patchy fog after 8pm. Otherwise, mostly clear, with a low around 40. Calm wind.
Monday
Areas of fog before 9am. Otherwise, sunny, with a high near 66. Calm wind.
Monday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 40. Calm wind.
Tuesday
Areas of fog before 10am. Otherwise, sunny, with a high near 67. Calm wind becoming east northeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 67.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 66.
Thursday Night
Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 43.
Friday
Patchy fog. Otherwise, mostly sunny, with a high near 65.
Friday Night
Widespread fog. Otherwise, partly cloudy, with a low around 44.
Saturday
Widespread fog. Otherwise, mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sonoma CA
 38.29°N 122.46°W (Elev. 72 ft)
Last Update:
1:33 pm PST Feb 1, 2026
Forecast Valid:
2pm PST Feb 1, 2026-6pm PST Feb 7, 2026
 
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Additional Resources

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Chance of Precipitation