National Weather Service Forecast for: Mammoth Cave KY
Issued by: National Weather Service Louisville, KY
Updated: 4:41 am CST Dec 22, 2025
 
Today

Today: A slight chance of showers between 2pm and 3pm.  Increasing clouds, with a high near 58. Calm wind becoming south 5 to 7 mph in the morning.  Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
Showers
Tonight

Tonight: Showers likely, mainly after 1am.  Cloudy, with a low around 49. South wind 6 to 8 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers then
Showers
Likely
Tuesday

Tuesday: A 40 percent chance of showers.  Cloudy, with a high near 60. Southwest wind 3 to 6 mph.
Chance
Showers

Tuesday
Night
Tuesday Night: Showers likely, mainly after midnight.  Cloudy, with a low around 55. Calm wind.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Showers
Likely

Wednesday

Wednesday: A 50 percent chance of showers.  Cloudy, with a high near 64. Calm wind becoming south around 5 mph.  New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers

Wednesday
Night
Wednesday Night: A 20 percent chance of showers before midnight.  Mostly cloudy, with a low around 58.
Slight Chance
Showers then
Mostly Cloudy
Christmas
Day
Christmas Day: Mostly cloudy, with a high near 69.
Mostly Cloudy

Thursday
Night
Thursday Night: Mostly cloudy, with a low around 60.
Mostly Cloudy

Friday

Friday: A 20 percent chance of showers before noon.  Mostly cloudy, with a high near 68.
Slight Chance
Showers then
Mostly Cloudy
Hi 58 °F Lo 49 °F Hi 60 °F Lo 55 °F Hi 64 °F Lo 58 °F Hi 69 °F Lo 60 °F Hi 68 °F

 

Today
 
A slight chance of showers between 2pm and 3pm. Increasing clouds, with a high near 58. Calm wind becoming south 5 to 7 mph in the morning. Chance of precipitation is 20%.
Tonight
 
Showers likely, mainly after 1am. Cloudy, with a low around 49. South wind 6 to 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
 
A 40 percent chance of showers. Cloudy, with a high near 60. Southwest wind 3 to 6 mph.
Tuesday Night
 
Showers likely, mainly after midnight. Cloudy, with a low around 55. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
 
A 50 percent chance of showers. Cloudy, with a high near 64. Calm wind becoming south around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
 
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 58.
Christmas Day
 
Mostly cloudy, with a high near 69.
Thursday Night
 
Mostly cloudy, with a low around 60.
Friday
 
A 20 percent chance of showers before noon. Mostly cloudy, with a high near 68.
Friday Night
 
Partly cloudy, with a low around 52.
Saturday
 
Mostly cloudy, with a high near 67.
Saturday Night
 
A 50 percent chance of showers. Mostly cloudy, with a low around 44.
Sunday
 
A 40 percent chance of showers. Mostly cloudy, with a high near 50.

 

Forecast from NOAA-NWS for Mammoth Cave KY.