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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: 1:26 am CDT Jul 16, 2026
 
Today

Today: Scattered showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89. Calm wind. Chance of precipitation is 30%.
Sunny then
Scattered
T-storms
 Tonight

Tonight: Isolated showers and thunderstorms before 9pm. Partly cloudy, with a low around 73. Calm wind. Chance of precipitation is 20%.
Isolated
T-storms then
Partly Cloudy
 Friday

Friday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 88. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Isolated
T-storms then
T-storms
Likely
 Friday
Night
Friday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 73. Calm wind. Chance of precipitation is 20%.
Slight Chance
T-storms then
Slight Chance
Showers
 Saturday

Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 89. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Chance
T-storms then
Showers
Likely
 Saturday
Night
Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73.
Chance
T-storms

 Sunday

Sunday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88.
Mostly Sunny
then Chance
T-storms
 Sunday
Night
Sunday Night: Mostly clear, with a low around 69.
Mostly Clear

 Monday

Monday: Mostly sunny, with a high near 88.
Mostly Sunny
Hi 89 °F Lo 73 °F Hi 88 °F Lo 73 °F Hi 89 °F Lo 73 °F Hi 88 °F Lo 69 °F Hi 88 °F

 

Today
 
 Scattered showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89. Calm wind. Chance of precipitation is 30%.
Tonight
 
 Isolated showers and thunderstorms before 9pm. Partly cloudy, with a low around 73. Calm wind. Chance of precipitation is 20%.
Friday
 
 Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 88. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
 
 A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 73. Calm wind. Chance of precipitation is 20%.
Saturday
 
 A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 89. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
 
 A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73.
Sunday
 
 A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88.
Sunday Night
 
 Mostly clear, with a low around 69.
Monday
 
 Mostly sunny, with a high near 88.
Monday Night
 
 Partly cloudy, with a low around 71.
Tuesday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Tuesday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Wednesday
 
 Mostly sunny, with a high near 87.

 

Forecast from NOAA-NWS for Mammoth Cave KY.

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






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