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

Dangerous Heat Wave Continues; Areas of Severe Thunderstorms Today

Dangerous, record-breaking heat will continue across most of the central and eastern U.S through Friday then focusing on the eastern U.S. through the Independence Day weekend. Peak heat indices of up to 115 degrees are possible. Strong to severe thunderstorms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians today. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

70°F

21°C

Humidity 60%
Wind Speed SSW 17 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 02 Jul 05:20 PM PDT
Extended Forecast for

4 Miles ENE Lake Berryessa CA

  • Tonight

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

    Low: 58 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 83. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 61. Southwest wind 5 to 8 mph becoming calm after midnight.

    Low: 61 °F

    Clear

  • Independence Day

    Independence Day: Sunny, with a high near 84. Light and variable wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60. West southwest wind 6 to 9 mph.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Monday Night

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

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 58. Southwest wind 5 to 8 mph becoming calm after midnight.
Friday
Sunny, with a high near 83. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Friday Night
Clear, with a low around 61. Southwest wind 5 to 8 mph becoming calm after midnight.
Independence Day
Sunny, with a high near 84. Light and variable wind becoming south southwest 5 to 8 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 60. West southwest wind 6 to 9 mph.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 58.
Monday
Sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Clear, with a low around 63.
Thursday
Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Lake Berryessa CA
 38.61°N 122.16°W (Elev. 1555 ft)
Last Update:
1:26 pm PDT Jul 2, 2026
Forecast Valid:
5pm PDT Jul 2, 2026-6pm PDT Jul 9, 2026
 
Forecast Discussion
 
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Additional Resources

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