Severe Thunderstorms in the Ohio Valley and Mid-Atlantic; Heat Continuing in the Central U.S.

Widespread strong to severe thunderstorms are expected from the Upper Ohio Valley into the Mid-Atlantic through Friday, with damaging winds as the primary threat. Dangerous heat will continue from the South-Central U.S. to the Midwest, Ohio/Tennessee valleys, and Mid-Atlantic. Widespread Major to Extreme Heat Risk is forecast into the weekend and will confine to the South-Central U.S. by Labor Day Read More >

Current conditions at

Louisville Muhammad Ali International Airport (KSDF)

Lat: 38.17°NLon: 85.74°WElev: 500ft.

Fair

94°F

34°C

Humidity 41%
Wind Speed SW 6 mph
Barometer 29.96 in (1013.7 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 3 Sep 7:56 pm EDT
Extended Forecast for

2 Miles WNW Louisville KY

Heat Advisory September 3, 08:47pm until September 4, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 3, 08:47pm until September 4, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 78 °F

    Clear

  • Friday

    Friday: A 10 percent chance of showers and thunderstorms after 4pm.  Sunny and hot, with a high near 99. Heat index values as high as 107. Calm wind becoming west around 5 mph in the afternoon.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 10 percent chance of showers and thunderstorms before 7pm.  Mostly clear, with a low around 77. Light west wind.

    Low: 77 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 2pm.  Sunny and hot, with a high near 95. Heat index values as high as 105. Calm wind becoming west around 5 mph in the afternoon.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am.  Partly cloudy, with a low around 72. Northeast wind around 6 mph.  Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 78. Calm wind.
Friday
A 10 percent chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 99. Heat index values as high as 107. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 77. Light west wind.
Saturday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 95. Heat index values as high as 105. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 72. Northeast wind around 6 mph. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 64.
Labor Day
Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 68.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Sunny and hot, with a high near 95.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Louisville KY
 38.24°N 85.78°W (Elev. 420 ft)
8:42 pm EDT Sep 3, 2026
8pm EDT Sep 3, 2026-6pm EDT Sep 10, 2026
 
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Additional Resources

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