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

Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes

Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

72°F

22°C

Humidity 30%
Wind Speed SW 6 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 21 Jun 11:54 AM PDT
Extended Forecast for

Yountville CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 78. North wind 7 to 9 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 50. Northwest wind 6 to 11 mph.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80. Light and variable wind becoming west southwest 5 to 9 mph in the afternoon.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51. West southwest wind 5 to 9 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 87. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 84.

    High: 84 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Areas of fog before 8am. Otherwise, mostly sunny, with a high near 86.

    High: 86 °F

    Areas Fog
    then Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 78. North wind 7 to 9 mph.
Tonight
Mostly clear, with a low around 50. Northwest wind 6 to 11 mph.
Sunday
Sunny, with a high near 80. Light and variable wind becoming west southwest 5 to 9 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 51. West southwest wind 5 to 9 mph becoming calm in the evening.
Monday
Sunny, with a high near 87. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 50.
Tuesday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 84.
Tuesday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 50.
Wednesday
Areas of fog before 8am. Otherwise, mostly sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Sunny, with a high near 86.
Thursday Night
Patchy fog. Otherwise, mostly clear, with a low around 52.
Friday
Patchy fog. Otherwise, sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Yountville CA
 38.39°N 122.37°W (Elev. 558 ft)
Last Update:
11:52 am PDT Jun 21, 2025
Forecast Valid:
12pm PDT Jun 21, 2025-6pm PDT Jun 27, 2025
 
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Additional Resources

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