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

Heavy to Excessive Rainfall and Flooding Threats in the Central and Eastern U.S.; Heat and Fire Weather Concerns in the West

Thunderstorms producing excessive rainfall and potential flooding concerns will continue through tonight from the Southern Plains to the East Coast. Areas of greatest concern for flooding are over central Texas and the Mid-Atlantic. Heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue through Monday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

54°F

12°C

Humidity 96%
Wind Speed W 5 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 14 Jul 12:54 AM PDT
Extended Forecast for

3 Miles N Hercules CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 55. West southwest wind around 8 mph.

    Low: 55 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 74. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 74 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 55. Southwest wind around 11 mph, with gusts as high as 18 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 67. Southwest wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 67 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 56. Southwest wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 55. West southwest wind around 8 mph.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 74. Southwest wind 7 to 11 mph, with gusts as high as 20 mph.
Monday Night
Increasing clouds, with a low around 55. Southwest wind around 11 mph, with gusts as high as 18 mph.
Tuesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 67. Southwest wind 10 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 56. Southwest wind 11 to 14 mph, with gusts as high as 22 mph.
Wednesday
Mostly sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 55.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 73.
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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:
11:59 pm PDT Jul 13, 2025
Forecast Valid:
1am PDT Jul 14, 2025-6pm PDT Jul 20, 2025
 
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Additional Resources

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