Another Arctic Blast in the East; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the upper Ohio Valley, Mid-Atlantic, Gulf Coast and Southeast U.S. this weekend. A rapidly deepening storm will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia into Sunday. Storm-force winds and coastal flooding will be possible along the East Coast. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

39°F

4°C

Humidity 100%
Wind Speed NNE 3 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 01 Feb 05:00 AM PST
Extended Forecast for

5 Miles W Napa Co. Airport CA

Coastal Flood Advisory February 1, 05:28am until February 1, 12:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory February 1, 05:28am until February 1, 12:00pm

    NOW until 12:00pm Sun

    Coastal Flood Advisory

  • Today

    High: 64 °F

    Fog then
    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 42. West northwest wind 5 to 7 mph.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Patchy fog between 10am and 11am.  Otherwise, sunny, with a high near 65. Light west wind.

    High: 65 °F

    Patchy Fog
    then Sunny

  • Monday Night

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

    Low: 41 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 7am.  Otherwise, sunny, with a high near 65. Calm wind becoming east northeast around 6 mph in the morning.

    High: 65 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Today
Widespread fog before 11am. Otherwise, mostly cloudy, with a high near 64. Light and variable wind becoming west 8 to 13 mph in the afternoon.
Tonight
Mostly clear, with a low around 42. West northwest wind 5 to 7 mph.
Monday
Patchy fog between 10am and 11am. Otherwise, sunny, with a high near 65. Light west wind.
Monday Night
Patchy fog after 9pm. Otherwise, mostly clear, with a low around 41. Calm wind.
Tuesday
Patchy fog before 7am. Otherwise, sunny, with a high near 65. Calm wind becoming east northeast around 6 mph in the morning.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Patchy fog. Otherwise, mostly sunny, with a high near 65.
Friday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 46.
Saturday
Areas of fog. Otherwise, partly sunny, with a high near 64.
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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)
12:26 am PST Feb 1, 2026
5am PST Feb 1, 2026-6pm PST Feb 7, 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