Winter Weather Across Portions of the Mid-Atlantic; Heavy Rain Along the Gulf Coast and Southeast

A storm system will continue to slowly move through the Gulf Coast and Southeast U.S. over the next couple of days, bringing a heavy rainfall threat through the weekend. Isolated instances of flooding may occur. On the north side of this storm system, colder air will support areas of mixed wintry precipitation and light snow from the Tennessee Valley to the Mid-Atlantic Friday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Mist

43°F

6°C

Humidity 93%
Wind Speed E 10 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 41°F (5°C)
Visibility 5.00 mi
Wind Chill37°F (3°C)
Last update 05 Dec 01:30 AM PST
Extended Forecast for

2 Miles NNW Vallejo CA

Coastal Flood Advisory December 5, 01:51am until December 7, 03:00pm
Cold Weather Advisory December 5, 01:51am until December 5, 08:00am
Click here for hazard details and duration
Coastal Flood Advisory
Cold Weather Advisory
  •  
    Coastal Flood Advisory December 5, 01:51am until December 7, 03:00pm
    Cold Weather Advisory December 5, 01:51am until December 5, 08:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 36 °F

    Patchy Frost
    and Patchy
    Fog

  • Friday

    Friday: Areas of frost before 8am.  Otherwise, sunny, with a high near 58. East northeast wind 5 to 7 mph becoming calm  in the morning.

    High: 58 °F

    Areas Frost
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42. East northeast wind 5 to 9 mph.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 59. Light east southeast wind.

    High: 59 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog between 10pm and 1am.  Otherwise, partly cloudy, with a low around 44. East southeast wind around 5 mph becoming calm  in the evening.

    Low: 44 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog between 7am and 10am.  Otherwise, mostly sunny, with a high near 60.

    High: 60 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Monday

    Monday: Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 62.

    High: 62 °F

    Patchy Fog
    then Sunny

Detailed Forecast

Overnight
Patchy fog after 3am. Patchy frost. Otherwise, partly cloudy, with a low around 36. East wind around 8 mph.
Friday
Areas of frost before 8am. Otherwise, sunny, with a high near 58. East northeast wind 5 to 7 mph becoming calm in the morning.
Friday Night
Partly cloudy, with a low around 42. East northeast wind 5 to 9 mph.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 59. Light east southeast wind.
Saturday Night
Patchy fog between 10pm and 1am. Otherwise, partly cloudy, with a low around 44. East southeast wind around 5 mph becoming calm in the evening.
Sunday
Patchy fog between 7am and 10am. Otherwise, mostly sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 62.
Monday Night
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 46.
Tuesday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 61.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 47.
Wednesday
Mostly sunny, with a high near 64.
Wednesday Night
Patchy fog. Otherwise, mostly clear, with a low around 47.
Thursday
Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Vallejo CA
 38.16°N 122.25°W (Elev. 26 ft)
1:40 am PST Dec 5, 2025
1am PST Dec 5, 2025-6pm PST Dec 11, 2025
 
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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