Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Clear

57°F

14°C

Humidity 87%
Wind Speed W 5 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 05 Sep 11:35 PM PDT
Extended Forecast for

Napa CA

  • Tonight

    Tonight: Partly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Patchy fog before 8am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 76. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 76 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53. Southwest wind around 6 mph becoming calm  in the evening.

    Low: 53 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 83. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 83 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57. West southwest wind around 6 mph becoming calm  in the evening.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 89.

    High: 89 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 52. Calm wind.
Sunday
Patchy fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 76. Calm wind becoming southwest 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around 53. Southwest wind around 6 mph becoming calm in the evening.
Labor Day
Sunny, with a high near 83. Calm wind becoming north northwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 57. West southwest wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Partly sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 69.
Thursday
Mostly sunny, with a high near 89.
Thursday Night
Mostly clear, with a low around 63.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.3°N 122.26°W (Elev. 82 ft)
11:26 pm PDT Sep 5, 2026
11pm PDT Sep 5, 2026-6pm PDT Sep 12, 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