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.

Clear

45°F

7°C

Humidity 87%
Wind Speed ESE 3 MPH
Barometer 30.27 in (1025.06 mb)
Dewpoint 41°F (5°C)
Visibility 7.00 mi
Last update 04 Dec 08:20 PM PST
Extended Forecast for

3 Miles N Hercules CA

  • Tonight

    Tonight: Mostly clear, with a low around 43. Light east southeast wind.

    Low: 43 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 60. Light south wind.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46. Light southwest wind.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 61. Light and variable wind.

    High: 61 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 2am.  Otherwise, partly cloudy, with a low around 48. Light south wind.

    Low: 48 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 10am.  Otherwise, partly sunny, with a high near 60.

    High: 60 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 43. Light east southeast wind.
Friday
Sunny, with a high near 60. Light south wind.
Friday Night
Partly cloudy, with a low around 46. Light southwest wind.
Saturday
Mostly sunny, with a high near 61. Light and variable wind.
Saturday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 48. Light south wind.
Sunday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Mostly sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Partly sunny, with a high near 61.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Mostly sunny, with a high near 62.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Hercules CA
 38.05°N 122.25°W (Elev. 56 ft)
7:35 pm PST Dec 4, 2025
8pm PST Dec 4, 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