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.

Partly Cloudy

64°F

18°C

Humidity 63%
Wind Speed WSW 8 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 02 Jul 10:35 AM PDT
Extended Forecast for

4 Miles S Lake Berryessa CA

  • Today

    Today: Mostly sunny, with a high near 81. Southwest wind 3 to 8 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Clear, with a low around 52. West southwest wind 5 to 8 mph becoming calm after midnight.

    Low: 52 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 84. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 55. Southwest wind 3 to 8 mph.

    Low: 55 °F

    Clear

  • Independence Day

    Independence Day: Sunny, with a high near 85. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 81. Southwest wind 3 to 8 mph.
Tonight
Clear, with a low around 52. West southwest wind 5 to 8 mph becoming calm after midnight.
Friday
Sunny, with a high near 84. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Friday Night
Clear, with a low around 55. Southwest wind 3 to 8 mph.
Independence Day
Sunny, with a high near 85. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 53.
Monday
Sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 51.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Lake Berryessa CA
 38.52°N 122.26°W (Elev. 1020 ft)
Last Update:
2:47 am PDT Jul 2, 2026
Forecast Valid:
10am PDT Jul 2, 2026-6pm PDT Jul 8, 2026
 
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Additional Resources

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