National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Louisville Muhammad Ali International Airport (KSDF)

Lat: 38.17°NLon: 85.74°WElev: 500ft.

Overcast

72°F

22°C

Humidity 91%
Wind Speed E 3 mph
Barometer 30.04 in (1016.8 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 19 Sep 2:56 am EDT
Extended Forecast for

Saint Dennis KY

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 72. Light east wind.

    Low: 72 °F

    Patchy Fog

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 8am. Otherwise, mostly sunny and hot, with a high near 95. Heat index values as high as 102. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 95 °F

    Patchy Fog
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 7pm. Increasing clouds, with a low around 72. Light and variable wind.

    Low: 72 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 95. West wind 6 to 8 mph.

    High: 95 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 68. Northwest wind 6 to 8 mph becoming northeast after midnight.

    Low: 68 °F

    Partly Cloudy

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Partly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 77. Chance of precipitation is 30%.

    High: 77 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms, then a chance of showers after 8pm. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.

    Low: 59 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 72. Light east wind.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 8am. Otherwise, mostly sunny and hot, with a high near 95. Heat index values as high as 102. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
A 30 percent chance of showers and thunderstorms before 7pm. Increasing clouds, with a low around 72. Light and variable wind.
Sunday
Mostly sunny and hot, with a high near 95. West wind 6 to 8 mph.
Sunday Night
Partly cloudy, with a low around 68. Northwest wind 6 to 8 mph becoming northeast after midnight.
Monday
A 50 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 77. Chance of precipitation is 30%.
Tuesday Night
A slight chance of showers and thunderstorms, then a chance of showers after 8pm. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of showers before 8am. Partly sunny, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Partly sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Dennis KY
 38.2°N 85.86°W (Elev. 420 ft)
Last Update:
2:26 am EDT Sep 19, 2026
Forecast Valid:
3am EDT Sep 19, 2026-6pm EDT Sep 25, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation