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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 37.19°N 86.12°W (Text-Only)
NWS Forecast for: Mammoth Cave KY
Issued by: National Weather Service Louisville, KY
Last Update: 3:21 am CDT Jun 30, 2026		Print

  • Today

    Today: Sunny and hot, with a high near 94. Heat index values as high as 106. Calm wind becoming west around 5 mph in the afternoon.

    High: 94 °F

    Hot


  • Tonight

    Tonight: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear


  • Wednesday

    Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 105. Calm wind.

    High: 95 °F

    Hot


  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 76. Calm wind.

    Low: 76 °F

    Mostly Clear


  • Thursday

    Thursday: Sunny and hot, with a high near 96. Calm wind.

    High: 96 °F

    Hot


  • Thursday
    Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 76.

    Low: 76 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 94.

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Friday
    Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75.

    Low: 75 °F

    Slight Chance
    T-storms

  • Independence
    Day

    Independence Day: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Chance
    T-storms



    • Today: Sunny and hot, with a high near 94. Heat index values as high as 106. Calm wind becoming west around 5 mph in the afternoon.

    Tonight: Mostly clear, with a low around 74. Calm wind.

    Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 105. Calm wind.

    Wednesday Night: Mostly clear, with a low around 76. Calm wind.

    Thursday: Sunny and hot, with a high near 96. Calm wind.

    Thursday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 76.

    Friday: A 40 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 94.

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75.

    Independence Day: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91.

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 75.

    Sunday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.

    Sunday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.

    Monday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.


    Mammoth Cave KY
     37.19°N 86.12°W (Elev. 597 ft)

    Visit your local NWS office at: https://www.weather.gov/lmk/