National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Mist

45°F

7°C

Humidity 93%
Wind Speed ESE 12 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 43°F (6°C)
Visibility 5.00 mi
Wind Chill39°F (4°C)
Last update 05 Dec 11:20 AM PST
Extended Forecast for

3 Miles N Hercules CA

  • Today

    Today: Sunny, with a high near 58. East wind 6 to 8 mph.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 44. Light and variable wind becoming east 5 to 10 mph after midnight.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 59. East wind 5 to 10 mph becoming light in the afternoon.

    High: 59 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46. East wind 5 to 7 mph.

    Low: 46 °F

    Partly Cloudy

  • Sunday

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

    High: 60 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 46.

    Low: 46 °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

  • Tuesday

    Tuesday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 61.

    High: 61 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Today
Sunny, with a high near 58. East wind 6 to 8 mph.
Tonight
Partly cloudy, with a low around 44. Light and variable wind becoming east 5 to 10 mph after midnight.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 59. East wind 5 to 10 mph becoming light in the afternoon.
Saturday Night
Partly cloudy, with a low around 46. East wind 5 to 7 mph.
Sunday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 60. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Mostly sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 61.
Tuesday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 49.
Wednesday
Mostly sunny, with a high near 63.
Wednesday Night
Patchy fog. Otherwise, mostly clear, with a low around 49.
Thursday
Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Hercules CA
 38.05°N 122.25°W (Elev. 56 ft)
Last Update:
1:40 am PST Dec 5, 2025
Forecast Valid:
11am PST Dec 5, 2025-6pm PST Dec 11, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation