Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Severe thunderstorms are expected across parts of the central and southern High Plains, central Great Lakes, and Ozarks Wednesday. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

76°F

24°C

Humidity 40%
Wind Speed W 10 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 25 Aug 06:54 PM PDT
Extended Forecast for

4 Miles WSW Yountville CA

  • Tonight

    Tonight: Partly cloudy, with a low around 60. West northwest wind 3 to 7 mph.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 93. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65. West wind 6 to 8 mph.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 93. West northwest wind 5 to 7 mph becoming calm  in the morning.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 65. West southwest wind around 6 mph becoming calm  in the evening.

    Low: 65 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Friday Night

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

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 53.

    Low: 53 °F

    Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 60. West northwest wind 3 to 7 mph.
Wednesday
Sunny, with a high near 93. Calm wind becoming west 5 to 8 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 65. West wind 6 to 8 mph.
Thursday
Sunny, with a high near 93. West northwest wind 5 to 7 mph becoming calm in the morning.
Thursday Night
Mostly cloudy, with a low around 65. West southwest wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 55.
Saturday
Sunny, with a high near 84.
Saturday Night
Clear, with a low around 53.
Sunday
Sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 52.
Monday
Mostly sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 51.
Tuesday
Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Yountville CA
 38.38°N 122.42°W (Elev. 1030 ft)
1:26 pm PDT Aug 25, 2026
7pm PDT Aug 25, 2026-6pm PDT Sep 1, 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