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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: 6:11 am CDT Aug 20, 2025
 
Today

Today: A 20 percent chance of showers before 7am. Patchy fog before 7am. Otherwise, partly sunny, with a high near 89. Calm wind becoming north around 6 mph in the afternoon.
Slight Chance
Showers and
Patchy Fog
then Mostly
Sunny
 Tonight

Tonight: Partly cloudy, with a low around 66. North wind around 5 mph becoming calm in the evening.
Partly Cloudy


 Thursday

Thursday: Sunny through mid morning, then becoming mostly cloudy, with a high near 85. North wind 3 to 5 mph.
Mostly Cloudy


 Thursday
Night
Thursday Night: Mostly clear, with a low around 66. Light north wind.
Mostly Clear


 Friday

Friday: Sunny, with a high near 90. Calm wind.
Sunny


 Friday
Night
Friday Night: Mostly clear, with a low around 67.
Mostly Clear


 Saturday

Saturday: Sunny, with a high near 90.
Sunny


 Saturday
Night
Saturday Night: Mostly clear, with a low around 66.
Mostly Clear


 Sunday

Sunday: Sunny, with a high near 87.
Sunny
Hi 89 °F Lo 66 °F Hi 85 °F Lo 66 °F Hi 90 °F Lo 67 °F Hi 90 °F Lo 66 °F Hi 87 °F

 

Today
 
 A 20 percent chance of showers before 7am. Patchy fog before 7am. Otherwise, partly sunny, with a high near 89. Calm wind becoming north around 6 mph in the afternoon.
Tonight
 
 Partly cloudy, with a low around 66. North wind around 5 mph becoming calm in the evening.
Thursday
 
 Sunny through mid morning, then becoming mostly cloudy, with a high near 85. North wind 3 to 5 mph.
Thursday Night
 
 Mostly clear, with a low around 66. Light north wind.
Friday
 
 Sunny, with a high near 90. Calm wind.
Friday Night
 
 Mostly clear, with a low around 67.
Saturday
 
 Sunny, with a high near 90.
Saturday Night
 
 Mostly clear, with a low around 66.
Sunday
 
 Sunny, with a high near 87.
Sunday Night
 
 Mostly clear, with a low around 59.
Monday
 
 Sunny, with a high near 79.
Monday Night
 
 Partly cloudy, with a low around 55.
Tuesday
 
 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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