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

41°F

5°C

Humidity 93%
Wind Speed WNW 4 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 01 Feb 02:35 AM PST
Extended Forecast for

Napa CA

Coastal Flood Advisory February 1, 02:55am until February 1, 12:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory February 1, 02:55am until February 1, 12:00pm

    NOW until 12:00pm Sun

    Coastal Flood Advisory

  • Overnight

    Low: 42 °F

    Fog

  • Sunday

    Sunday: Widespread fog before 10am.  Otherwise, partly sunny, with a high near 64. Calm wind becoming south around 6 mph in the afternoon.

    High: 64 °F

    Fog then
    Partly Sunny

  • Sunday Night

    Sunday Night: Patchy fog before 10pm, then patchy fog after 4am.  Otherwise, mostly clear, with a low around 42. Light and variable wind.

    Low: 42 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 10am.  Otherwise, sunny, with a high near 67. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 67 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog.  Otherwise, mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 9am.  Otherwise, sunny, with a high near 67.

    High: 67 °F

    Areas Fog
    then Sunny

  • Tuesday Night

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

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy fog before 8am.  Otherwise, sunny, with a high near 68.

    High: 68 °F

    Patchy Fog
    then Sunny

Detailed Forecast

Overnight
Widespread fog, mainly after 4am. Otherwise, mostly cloudy, with a low around 42. Calm wind.
Sunday
Widespread fog before 10am. Otherwise, partly sunny, with a high near 64. Calm wind becoming south around 6 mph in the afternoon.
Sunday Night
Patchy fog before 10pm, then patchy fog after 4am. Otherwise, mostly clear, with a low around 42. Light and variable wind.
Monday
Patchy fog before 10am. Otherwise, sunny, with a high near 67. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Patchy fog. Otherwise, mostly clear, with a low around 42. Calm wind.
Tuesday
Areas of fog before 9am. Otherwise, sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Patchy fog before 8am. Otherwise, sunny, with a high near 68.
Wednesday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 43.
Thursday
Patchy fog before 9am. Otherwise, sunny, with a high near 67.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 67.
Friday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 46.
Saturday
Areas of fog. Otherwise, mostly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
12:26 am PST Feb 1, 2026
2am 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