Severe Thunderstorms and Heavy Rainfall Across the Midwest into the Great Lakes Region; Significant Heat in the Southwest

Strong to severe storms may produce damaging winds, isolated hail, and a few tornadoes from the Midwest into the lower Great Lakes. These storms may also produce areas of heavy rain and flash flooding. Significant heat will continue across parts of the Desert Southwest into western Texas and north Alaska. Dangerous heat will also build into the Eastern and Central U.S. and continue into next week. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

66°F

19°C

Humidity 68%
Wind Speed SSW 6 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 18 Jun 11:20 AM PDT
Extended Forecast for

3 Miles NNE Hercules CA

  • Today

    Today: Sunny, with a high near 81. West southwest wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 54. Southwest wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 54 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 70. Southwest wind 8 to 14 mph, with gusts as high as 23 mph.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 52. West southwest wind 13 to 15 mph, with gusts as high as 24 mph.

    Low: 52 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 68. West wind 10 to 17 mph, with gusts as high as 28 mph.

    High: 68 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 51.

    Low: 51 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 54.

    Low: 54 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 81. West southwest wind 9 to 13 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 54. Southwest wind 10 to 13 mph, with gusts as high as 22 mph.
Juneteenth
Sunny, with a high near 70. Southwest wind 8 to 14 mph, with gusts as high as 23 mph.
Thursday Night
Clear, with a low around 52. West southwest wind 13 to 15 mph, with gusts as high as 24 mph.
Friday
Sunny, with a high near 68. West wind 10 to 17 mph, with gusts as high as 28 mph.
Friday Night
Clear, with a low around 51.
Saturday
Sunny, with a high near 71.
Saturday Night
Clear, with a low around 54.
Sunday
Sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Hercules CA
 38.05°N 122.25°W (Elev. 56 ft)
2:24 am PDT Jun 18, 2025
11am PDT Jun 18, 2025-6pm PDT Jun 24, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database