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

Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

81°F

27°C

Humidity 36%
Wind Speed SSW 11 MPH
Barometer 29.84 in (1010.5 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 29 Jun 02:00 PM PDT
Extended Forecast for

4 Miles WSW Yountville CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 85. West wind 3 to 7 mph. Winds could gust as high as 18 mph.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 57. West wind 5 to 7 mph becoming calm in the evening.

    Low: 57 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 81. Calm wind becoming south southwest 5 to 7 mph in the afternoon.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52. South southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 85. West wind 3 to 7 mph. Winds could gust as high as 18 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 57. West wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 81. Calm wind becoming south southwest 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 52. South southwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 80. Calm wind becoming south southwest around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 82.
Friday Night
Clear, with a low around 56.
Independence Day
Sunny, with a high near 84.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Yountville CA
 38.38°N 122.42°W (Elev. 1030 ft)
Last Update:
1:26 pm PDT Jun 29, 2026
Forecast Valid:
2pm PDT Jun 29, 2026-6pm PDT Jul 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation