Dangerous, Record-Breaking Heat to Continue in the Central and Eastern U.S.; Severe Thunderstorms in the Upper Midwest; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will continue across most of the central and eastern U.S this week. Heat indices will exceed 100 degrees. Severe storms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians Thursday, with the primary threat large to very large hail. Critical fire weather to continue in the Four Corners Region Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

57°F

14°C

Humidity 87%
Wind Speed SSW 18 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 01 Jul 10:35 PM PDT
Extended Forecast for

3 Miles SSE Lake Berryessa CA

  • Tonight

    Tonight: Mostly clear, with a low around 55. Southwest wind around 6 mph becoming calm  after midnight.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 85. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 85 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 55. West southwest wind 5 to 7 mph becoming calm  after midnight.

    Low: 55 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 89. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 58. Southwest wind 5 to 8 mph becoming calm  after midnight.

    Low: 58 °F

    Clear

  • Independence Day

    Independence Day: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 55. Southwest wind around 6 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 85. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Thursday Night
Clear, with a low around 55. West southwest wind 5 to 7 mph becoming calm after midnight.
Friday
Sunny, with a high near 89. Calm wind becoming southwest around 6 mph in the afternoon.
Friday Night
Clear, with a low around 58. Southwest wind 5 to 8 mph becoming calm after midnight.
Independence Day
Sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Lake Berryessa CA
 38.55°N 122.24°W (Elev. 663 ft)
8:52 pm PDT Jul 1, 2026
10pm PDT Jul 1, 2026-6pm PDT Jul 8, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database