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Mammoth Cave National Park, KY Weather Forecast
Wx Discussion - Wx Hazards - Wx Aviation
NWS Forecast for Mammoth Cave KY
National Weather Service Forecast for: Mammoth Cave KY
Issued by: National Weather Service Louisville, KY
Updated: 9:26 am CDT May 9, 2026
 
Today

Today: Sunny, with a high near 77. West wind around 6 mph.
Sunny

 Tonight

Tonight: Mostly clear, with a low around 55. Calm wind.
Mostly Clear

 Sunday

Sunday: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Increasing clouds, with a high near 79. Light and variable wind.
Sunny then
Chance
T-storms
 Sunday
Night
Sunday Night: A slight chance of showers and thunderstorms, then a chance of showers after 7pm. Mostly cloudy, with a low around 52. Light north wind. Chance of precipitation is 40%.
Chance
Showers
 Monday

Monday: Mostly sunny, with a high near 68. Northeast wind 3 to 7 mph.
Mostly Sunny

 Monday
Night
Monday Night: Clear, with a low around 44.
Clear

 Tuesday

Tuesday: Sunny, with a high near 72.
Sunny

 Tuesday
Night
Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 55.
Mostly Clear
then Chance
Showers
 Wednesday

Wednesday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 77.
Slight Chance
T-storms
Hi 77 °F Lo 55 °F Hi 79 °F Lo 52 °F Hi 68 °F Lo 44 °F Hi 72 °F Lo 55 °F Hi 77 °F

 

Today
 
 Sunny, with a high near 77. West wind around 6 mph.
Tonight
 
 Mostly clear, with a low around 55. Calm wind.
Sunday
 
 A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Increasing clouds, with a high near 79. Light and variable wind.
Sunday Night
 
 A slight chance of showers and thunderstorms, then a chance of showers after 7pm. Mostly cloudy, with a low around 52. Light north wind. Chance of precipitation is 40%.
Monday
 
 Mostly sunny, with a high near 68. Northeast wind 3 to 7 mph.
Monday Night
 
 Clear, with a low around 44.
Tuesday
 
 Sunny, with a high near 72.
Tuesday Night
 
 A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 55.
Wednesday
 
 A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 77.
Wednesday Night
 
 Mostly clear, with a low around 51.
Thursday
 
 Sunny, with a high near 74.
Thursday Night
 
 Mostly clear, with a low around 52.
Friday
 
 Mostly sunny, with a high near 78.

 

Forecast from NOAA-NWS for Mammoth Cave KY.

Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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