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

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Glasgow, Glasgow Municipal Airport (KGLW)

Lat: 37.03°NLon: 85.95°WElev: 715ft.

Fair

65°F

18°C

Humidity 98%
Wind Speed Calm
Barometer 30.01 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 22 Aug 10:35 pm CDT
Extended Forecast for

Mammoth Cave KY

  • Tonight

    Tonight: Patchy fog between 4am and 5am. Otherwise, mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, sunny, with a high near 84. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 84 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 84. Calm wind.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Tuesday Night

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

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.

    High: 88 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    Showers

Detailed Forecast

Tonight
Patchy fog between 4am and 5am. Otherwise, mostly clear, with a low around 62. Calm wind.
Sunday
Patchy fog before 8am. Otherwise, sunny, with a high near 84. Calm wind becoming northwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 59. Calm wind.
Monday
Sunny, with a high near 84. Calm wind.
Monday Night
Partly cloudy, with a low around 60. Calm wind.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 88.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 66.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mammoth Cave KY
 37.19°N 86.12°W (Elev. 597 ft)
Last Update:
9:35 pm CDT Aug 22, 2026
Forecast Valid:
11pm CDT Aug 22, 2026-6pm CDT Aug 29, 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