Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. 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 53%
Wind Speed SSW 14 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 16 Jun 02:35 PM PDT
Extended Forecast for

3 Miles NNW Napa CA

Coastal Flood Advisory June 16, 02:47pm until June 18, 05:00am
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory June 16, 02:47pm until June 18, 05:00am

    NOW until 5:00am Thu

    Coastal Flood Advisory

  • This Afternoon

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 1am.  Otherwise, increasing clouds, with a low around 54. Southwest wind 5 to 8 mph becoming calm  after midnight.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 8am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 79. Calm wind becoming south southwest 5 to 9 mph in the afternoon.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 1am.  Otherwise, increasing clouds, with a low around 54. Southwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 76. Calm wind becoming southwest 5 to 9 mph in the afternoon.

    High: 76 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog between 2am and 4am.  Otherwise, partly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Clear
    then Patchy
    Fog

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Patchy fog after midnight.  Otherwise, mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

This Afternoon
Sunny, with a high near 82. South southwest wind 7 to 9 mph.
Tonight
Patchy fog after 1am. Otherwise, increasing clouds, with a low around 54. Southwest wind 5 to 8 mph becoming calm after midnight.
Wednesday
Patchy fog before 8am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 79. Calm wind becoming south southwest 5 to 9 mph in the afternoon.
Wednesday Night
Patchy fog after 1am. Otherwise, increasing clouds, with a low around 54. Southwest wind 5 to 8 mph becoming calm in the evening.
Thursday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 76. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Thursday Night
Patchy fog between 2am and 4am. Otherwise, partly cloudy, with a low around 54.
Juneteenth
Mostly sunny, with a high near 74.
Friday Night
Patchy fog after midnight. Otherwise, mostly clear, with a low around 53.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 78.
Saturday Night
Widespread fog, mainly after 2am. Otherwise, mostly clear, with a low around 51.
Sunday
Areas of fog. Otherwise, sunny, with a high near 81.
Sunday Night
Widespread fog. Otherwise, mostly clear, with a low around 52.
Monday
Areas of fog. Otherwise, sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Napa CA
 38.33°N 122.32°W (Elev. 82 ft)
1:39 pm PDT Jun 16, 2026
2pm PDT Jun 16, 2026-6pm PDT Jun 22, 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