Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. 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 60%
Wind Speed SSW 9 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 19 Aug 02:15 PM PDT
Extended Forecast for

Napa CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 82. South southwest wind around 8 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 56. South southwest wind around 5 mph becoming calm  in the evening.

    Low: 56 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, partly sunny, with a high near 80. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 80 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 57. Southwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 57 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 79. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 79 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 80.

    High: 80 °F

    Patchy Fog
    then Sunny

  • Saturday Night

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

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 80.

    High: 80 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 82. South southwest wind around 8 mph.
Tonight
Increasing clouds, with a low around 56. South southwest wind around 5 mph becoming calm in the evening.
Thursday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 80. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 57. Southwest wind 5 to 7 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 79. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 80.
Sunday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 55.
Monday
Patchy fog. Otherwise, partly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 55.
Tuesday
Mostly cloudy, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Napa CA
 38.29°N 122.29°W (Elev. 20 ft)
1:26 pm PDT Aug 19, 2026
2pm PDT Aug 19, 2026-6pm PDT Aug 25, 2026
 
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Additional Resources

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Hourly Weather Forecast

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