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 the day. 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

37°F

3°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 02 Feb 06:00 AM PST
Extended Forecast for

5 Miles W Napa Co. Airport CA

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

  • Today

    Today: Widespread fog, mainly before 8am. Otherwise, sunny, with a high near 65. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 65 °F

    Fog then
    Sunny

  • Tonight

    Tonight: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 10am. Otherwise, sunny, with a high near 67. East wind 3 to 6 mph.

    High: 67 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, sunny, with a high near 66. East northeast wind 3 to 7 mph.

    High: 66 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 42.

    Low: 42 °F

    Clear then
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, sunny, with a high near 65.

    High: 65 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog between midnight and 2am. Otherwise, mostly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 64.

    High: 64 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Today
Widespread fog, mainly before 8am. Otherwise, sunny, with a high near 65. Calm wind becoming south southwest around 5 mph in the afternoon.
Tonight
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 41. Calm wind.
Tuesday
Areas of fog before 10am. Otherwise, sunny, with a high near 67. East wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 41. Calm wind.
Wednesday
Patchy fog before 8am. Otherwise, sunny, with a high near 66. East northeast wind 3 to 7 mph.
Wednesday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 42.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 65.
Thursday Night
Patchy fog between midnight and 2am. Otherwise, mostly cloudy, with a low around 45.
Friday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 64.
Friday Night
Patchy fog after 9pm. Otherwise, partly cloudy, with a low around 45.
Saturday
Widespread fog. Otherwise, mostly sunny, with a high near 64.
Saturday Night
Widespread fog. Otherwise, partly cloudy, with a low around 46.
Sunday
A slight chance of rain. Widespread fog. Otherwise, partly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Napa Co. Airport CA
 38.21°N 122.38°W (Elev. 3 ft)
Last Update:
12:26 am PST Feb 2, 2026
Forecast Valid:
6am PST Feb 2, 2026-6pm PST Feb 8, 2026
 
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Additional Resources

Radar & Satellite Image

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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