Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.

Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >

Current conditions at

Louisville Muhammad Ali International Airport (KSDF)

Lat: 38.17°NLon: 85.74°WElev: 500ft.

Mostly Cloudy

94°F

34°C

Humidity 44%
Wind Speed SW 9 mph
Barometer 30.22 in (1022.7 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 16 Sep 5:56 pm EDT
Extended Forecast for

Louisville KY

Heat Advisory September 16, 06:13pm until September 17, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 16, 06:13pm until September 17, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • Tonight

    Low: 76 °F

    Isolated
    Showers then
    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 98. Heat index values as high as 104. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 98 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 75. Light and variable wind.

    Low: 75 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 92. Heat index values as high as 100. Northeast wind 3 to 5 mph.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 70. East wind 5 to 8 mph.

    Low: 70 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm.  Partly sunny and hot, with a high near 95.

    High: 95 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Tonight
Isolated showers before 9pm. Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Thursday
Sunny and hot, with a high near 98. Heat index values as high as 104. Calm wind becoming west 5 to 7 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 75. Light and variable wind.
Friday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Heat index values as high as 100. Northeast wind 3 to 5 mph.
Friday Night
Mostly clear, with a low around 70. East wind 5 to 8 mph.
Saturday
Sunny and hot, with a high near 95.
Saturday Night
Partly cloudy, with a low around 74.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 95.
Sunday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 71.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 91.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Louisville KY
 38.22°N 85.75°W (Elev. 492 ft)
4:56 pm EDT Sep 16, 2026
6pm EDT Sep 16, 2026-6pm EDT Sep 23, 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