Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

Napa, Napa County Airport (KAPC)

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

Partly Cloudy

57°F

14°C

Humidity 89%
Wind Speed WNW 3 MPH
Barometer 29.83 in (1010.16 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 13 Aug 01:25 AM PDT
Extended Forecast for

3 Miles SSE Yountville CA

Coastal Flood Advisory August 13, 01:34am until August 13, 02:00am
Click here for hazard details and duration
...
  •  
    Coastal Flood Advisory August 13, 01:34am until August 13, 02:00am

    NOW until 2:00am Thu

    Coastal Flood Advisory

  • Overnight

    Low: 57 °F

    Patchy Fog

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 71. Light south wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 71 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Patchy fog after 3am.  Otherwise, increasing clouds, with a low around 53. South southwest wind 5 to 7 mph becoming calm  after midnight.

    Low: 53 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am.  Otherwise, cloudy through mid morning, then gradual clearing, with a high near 71. Calm wind becoming south southwest 5 to 8 mph in the afternoon.

    High: 71 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Patchy fog after 11pm.  Otherwise, mostly cloudy, with a low around 52. Southwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 52 °F

    Patchy Fog

  • Saturday

    Saturday: Areas of fog before 11am.  Otherwise, partly sunny, with a high near 76.

    High: 76 °F

    Areas Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 52.

    Low: 52 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 10am.  Otherwise, partly sunny, with a high near 80.

    High: 80 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Overnight
Patchy fog between 3am and 4am. Otherwise, cloudy, with a steady temperature around 57. Calm wind.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 71. Light south wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
Patchy fog after 3am. Otherwise, increasing clouds, with a low around 53. South southwest wind 5 to 7 mph becoming calm after midnight.
Friday
Patchy fog before 8am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 71. Calm wind becoming south southwest 5 to 8 mph in the afternoon.
Friday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 52. Southwest wind 5 to 7 mph becoming calm in the evening.
Saturday
Areas of fog before 11am. Otherwise, partly sunny, with a high near 76.
Saturday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 52.
Sunday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 80.
Sunday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 52.
Monday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 76.
Monday Night
Patchy fog. Otherwise, partly cloudy, with a low around 53.
Tuesday
Areas of fog. Otherwise, partly sunny, with a high near 78.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 54.
Wednesday
Areas of fog. Otherwise, partly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Yountville CA
 38.35°N 122.33°W (Elev. 105 ft)
1:26 am PDT Aug 13, 2026
1am PDT Aug 13, 2026-6pm PDT Aug 19, 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