Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

61°F

16°C

Humidity 82%
Wind Speed WSW 5 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 28 Aug 03:20 AM PDT
Extended Forecast for

4 Miles SW Yountville CA

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 71. West wind 3 to 7 mph.

    Low: 71 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of showers before 11am.  Mostly cloudy, then gradually becoming sunny, with a high near 78. Light south southwest wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 78 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56. West southwest wind around 6 mph becoming calm  in the evening.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 78. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 54. West southwest wind around 6 mph becoming calm  in the evening.

    Low: 54 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 71. West wind 3 to 7 mph.
Friday
A 20 percent chance of showers before 11am. Mostly cloudy, then gradually becoming sunny, with a high near 78. Light south southwest wind becoming southwest 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 56. West southwest wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 78. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Saturday Night
Clear, with a low around 54. West southwest wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Yountville CA
 38.36°N 122.42°W (Elev. 1798 ft)
2:47 am PDT Aug 28, 2026
3am PDT Aug 28, 2026-6pm PDT Sep 3, 2026
 
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Additional Resources

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Hourly Weather Forecast

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