Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East

Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

67°F

19°C

Humidity 48%
Wind Speed SW 3 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 19 May 08:54 AM PDT
Extended Forecast for

9 Miles ENE Yountville CA

  • Today

    Today: Sunny, with a high near 84. North wind 6 to 9 mph, with gusts as high as 18 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. West wind around 5 mph becoming calm  in the evening.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 56. West southwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 56 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 90. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 55.

    Low: 55 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 52.

    Low: 52 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 84. North wind 6 to 9 mph, with gusts as high as 18 mph.
Tonight
Mostly clear, with a low around 58. West wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 88. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Wednesday Night
Clear, with a low around 56. West southwest wind 5 to 8 mph becoming calm in the evening.
Thursday
Sunny, with a high near 90. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
Clear, with a low around 55.
Friday
Sunny, with a high near 84.
Friday Night
Clear, with a low around 52.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 51.
Memorial Day
Sunny, with a high near 82.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ENE Yountville CA
 38.44°N 122.21°W (Elev. 797 ft)
8:47 am PDT May 19, 2026
9am PDT May 19, 2026-6pm PDT May 25, 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