Extreme Heat Across the Southern U.S.; Flash Flooding Threats in the Mid-Atlantic, Northeast, and Four Corners Region

Dangerous and extreme heat will remain across portions of the southern U.S. this week. Heavy rainfall may bring significant flash flooding across portions of the Mid-Atlantic and Northeast through the night, and additional flash flooding concerns across New England on Wednesday. Monsoonal thunderstorms will bring a flash flood risk to the Four Corners region, especially in burn scar areas Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

64°F

18°C

Humidity 82%
Wind Speed SSW 16 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 28 Jul 10:35 PM PDT
Extended Forecast for

7 Miles WNW Vacaville CA

  • Tonight

    Tonight: Clear, with a low around 62. West northwest wind around 5 mph becoming calm  after midnight.

    Low: 62 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62. West wind 3 to 7 mph.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 86. Southwest wind 3 to 8 mph.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 62. Southwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 62 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 66.

    Low: 66 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 69.

    Low: 69 °F

    Clear

Detailed Forecast

Tonight
Clear, with a low around 62. West northwest wind around 5 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 86. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 62. West wind 3 to 7 mph.
Thursday
Sunny, with a high near 86. Southwest wind 3 to 8 mph.
Thursday Night
Clear, with a low around 62. Southwest wind 5 to 8 mph becoming calm in the evening.
Friday
Sunny, with a high near 90.
Friday Night
Clear, with a low around 66.
Saturday
Sunny, with a high near 92.
Saturday Night
Clear, with a low around 69.
Sunday
Sunny, with a high near 91.
Sunday Night
Clear, with a low around 68.
Monday
Sunny, with a high near 89.
Monday Night
Clear, with a low around 66.
Tuesday
Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles WNW Vacaville CA
 38.39°N 122.11°W (Elev. 1365 ft)
1:26 pm PDT Jul 28, 2026
10pm PDT Jul 28, 2026-6pm PDT Aug 4, 2026
 
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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