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

Air Quality Concerns; Fire Weather; Extreme Heat; Severe Thunderstorms and 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 and Rockies. Heavy rainfall and flash flooding possible for the Southeast through today. Strong to severe thunderstorms for the Southern Plains with severe wind gusts and large hail possible. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

52°F

11°C

Humidity 87%
Wind Speed WSW 4 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 04 Aug 07:00 AM PDT
Extended Forecast for

Yountville CA

  • Today

    Today: Sunny, with a high near 86. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 51. West wind around 6 mph becoming calm in the evening.

    Low: 51 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 86. Calm wind.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 55. Calm wind.

    Low: 55 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 92. Light southwest wind.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Areas of fog before 8am. Otherwise, mostly sunny, with a high near 89.

    High: 89 °F

    Areas Fog
    then Sunny

Detailed Forecast

Today
Sunny, with a high near 86. Calm wind becoming southwest 5 to 7 mph in the morning.
Tonight
Increasing clouds, with a low around 51. West wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 86. Calm wind.
Tuesday Night
Increasing clouds, with a low around 55. Calm wind.
Wednesday
Sunny, with a high near 92. Light southwest wind.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 89.
Thursday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 56.
Friday
Areas of fog before 8am. Otherwise, mostly sunny, with a high near 89.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
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:
2:34 am PDT Aug 4, 2025
Forecast Valid:
7am PDT Aug 4, 2025-6pm PDT Aug 10, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation