Storm Moving from Western into Central U.S. through Wednesday

A storm system moving over the Rockies Wednesday will bring marginal risks for excessive rainfall and severe thunderstorms from parts of New Mexico into western South Dakota. Moderate snow is expected from northwestern Wyoming into southern Montana. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Rain

54°F

12°C

Humidity 100%
Wind Speed NE 3 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 14 Oct 10:00 PM PDT
Extended Forecast for

3 Miles N Hercules CA

  • Tonight

    Tonight: A 50 percent chance of showers.  Mostly cloudy, with a low around 53. Light east wind.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 63. Light and variable wind becoming east around 5 mph in the morning.

    High: 63 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Patchy fog before 9am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 66. Calm wind becoming west around 5 mph in the afternoon.

    High: 66 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52. West southwest wind around 6 mph becoming calm  in the evening.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Tonight
A 50 percent chance of showers. Mostly cloudy, with a low around 53. Light east wind. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 63. Light and variable wind becoming east around 5 mph in the morning.
Wednesday Night
Mostly clear, with a low around 51. North northwest wind around 5 mph becoming calm in the evening.
Thursday
Patchy fog before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 66. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 52. West southwest wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 71.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Mostly sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Hercules CA
 38.05°N 122.25°W (Elev. 56 ft)
1:26 pm PDT Oct 14, 2025
10pm PDT Oct 14, 2025-6pm PDT Oct 21, 2025
 
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Additional Resources

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Hourly Weather Forecast

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