National Weather Service Forecast for: Mammoth Cave KY
Issued by: National Weather Service Louisville, KY
Updated: 5:56 am CST Feb 17, 2026
 
Today

Today: Increasing clouds, with a high near 64. South wind 3 to 8 mph.
Increasing
Clouds

 Tonight

Tonight: Mostly cloudy, with a low around 58. South wind 6 to 10 mph, with gusts as high as 22 mph.
Mostly Cloudy

 Wednesday

Wednesday: A 20 percent chance of showers before noon. Cloudy, with a high near 67. Southwest wind 6 to 10 mph, with gusts as high as 22 mph.
Slight Chance
Showers then
Mostly Cloudy
 Wednesday
Night
Wednesday Night: A chance of showers, with thunderstorms also possible after 3am. Mostly cloudy, with a low around 57. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Chance
Showers

 Thursday

Thursday: A 50 percent chance of showers. Partly sunny, with a high near 72. Light south wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Chance
Showers

 Thursday
Night
Thursday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am. Low around 49. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers then
Chance
Showers
 Friday

Friday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 61.
Mostly Sunny
then Slight
Chance
Showers
 Friday
Night
Friday Night: A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 39.
Chance
Showers

 Saturday

Saturday: A 30 percent chance of showers, mainly after noon. Mostly sunny, with a high near 52.
Chance
Showers
Hi 64 °F Lo 58 °F Hi 67 °F Lo 57 °F Hi 72 °F Lo 49 °F Hi 61 °F Lo 39 °F Hi 52 °F

Hazardous Weather Outlook
Special Weather Statement
 

Today
 
 Increasing clouds, with a high near 64. South wind 3 to 8 mph.
Tonight
 
 Mostly cloudy, with a low around 58. South wind 6 to 10 mph, with gusts as high as 22 mph.
Wednesday
 
 A 20 percent chance of showers before noon. Cloudy, with a high near 67. Southwest wind 6 to 10 mph, with gusts as high as 22 mph.
Wednesday Night
 
 A chance of showers, with thunderstorms also possible after 3am. Mostly cloudy, with a low around 57. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
 
 A 50 percent chance of showers. Partly sunny, with a high near 72. Light south wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
 
 Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms between midnight and 3am, then a chance of showers after 3am. Low around 49. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
 
 A 20 percent chance of showers after noon. Mostly sunny, with a high near 61.
Friday Night
 
 A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 39.
Saturday
 
 A 30 percent chance of showers, mainly after noon. Mostly sunny, with a high near 52.
Saturday Night
 
 A chance of rain showers before midnight, then a chance of rain and snow showers. Partly cloudy, with a low around 31. Chance of precipitation is 40%.
Sunday
 
 A slight chance of rain and snow showers. Mostly sunny, with a high near 44. Chance of precipitation is 20%.
Sunday Night
 
 Partly cloudy, with a low around 24.
Monday
 
 Sunny, with a high near 41.

 

Forecast from NOAA-NWS for Mammoth Cave KY.