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

Air Quality Concerns; Fire Weather; Extreme Heat; Flash Flooding

Wildfire smoke continues to result in poor air quality from the Upper Midwest into the Northeast. Dangerous heat and fire weather concerns for portions of the Four Corners region into the central Great Basin. Heavy rainfall and flash flooding possible for the Southeast through Monday. For Hawaii, gusty trade winds a drier weather could result in any fires that start to spread rapidly. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

75°F

24°C

Humidity 50%
Wind Speed SSW 18 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 03 Aug 02:20 PM PDT
Extended Forecast for

Yountville CA

  • This Afternoon

    This Afternoon: Sunny, with a steady temperature around 85. West southwest wind around 7 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 50. West wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 18 mph.

    Low: 50 °F

    Mostly Clear

  • Monday

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

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Areas of fog after 5am. Otherwise, increasing clouds, with a low around 51. West southwest wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Clear then
    Areas Fog

  • Tuesday

    Tuesday: Areas of fog before 8am. Otherwise, sunny, with a high near 86. Light south southwest wind.

    High: 86 °F

    Areas Fog
    then Sunny

  • Tuesday Night

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

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a steady temperature around 85. West southwest wind around 7 mph.
Tonight
Mostly clear, with a low around 50. West wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Monday
Sunny, with a high near 87. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Monday Night
Areas of fog after 5am. Otherwise, increasing clouds, with a low around 51. West southwest wind around 5 mph becoming calm in the evening.
Tuesday
Areas of fog before 8am. Otherwise, sunny, with a high near 86. Light south southwest wind.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
Mostly sunny, with a high near 89.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 88.
Friday Night
Partly cloudy, with a low around 56.
Saturday
Mostly sunny, with a high near 88.
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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:
1:42 pm PDT Aug 3, 2025
Forecast Valid:
2pm PDT Aug 3, 2025-6pm PDT Aug 9, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation