National Weather Service Forecast for: Mammoth Cave KY
Issued by: National Weather Service Louisville, KY
Updated: 3:16 pm CST Dec 16, 2025
 
This
Afternoon
This Afternoon: Partly sunny, with a high near 46. South wind around 7 mph.
Partly Sunny

 Tonight

Tonight: Increasing clouds, with a low around 36. Southwest wind 6 to 8 mph.
Increasing
Clouds

 Wednesday

Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 52. Southwest wind 5 to 7 mph.
Decreasing
Clouds

 Wednesday
Night
Wednesday Night: A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 42. Calm wind becoming south 5 to 7 mph after midnight.
Partly Cloudy
then Slight
Chance
Showers
 Thursday

Thursday: Showers. High near 58. South wind 8 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Showers
Likely then
Showers
 Thursday
Night
Thursday Night: Rain showers likely before midnight, then a chance of sprinkles between midnight and 2am, then a chance of flurries after 2am. Mostly cloudy, with a low around 26. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Showers
Likely then
Chance
Sprinkles/Flurries
 Friday

Friday: Sunny, with a high near 36.
Sunny

 Friday
Night
Friday Night: Mostly clear, with a low around 28.
Mostly Clear

 Saturday

Saturday: Mostly sunny, with a high near 53.
Mostly Sunny
Hi 46 °F Lo 36 °F Hi 52 °F Lo 42 °F Hi 58 °F Lo 26 °F Hi 36 °F Lo 28 °F Hi 53 °F

 

This Afternoon
 
 Partly sunny, with a high near 46. South wind around 7 mph.
Tonight
 
 Increasing clouds, with a low around 36. Southwest wind 6 to 8 mph.
Wednesday
 
 Cloudy, then gradually becoming mostly sunny, with a high near 52. Southwest wind 5 to 7 mph.
Wednesday Night
 
 A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 42. Calm wind becoming south 5 to 7 mph after midnight.
Thursday
 
 Showers. High near 58. South wind 8 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday Night
 
 Rain showers likely before midnight, then a chance of sprinkles between midnight and 2am, then a chance of flurries after 2am. Mostly cloudy, with a low around 26. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Friday
 
 Sunny, with a high near 36.
Friday Night
 
 Mostly clear, with a low around 28.
Saturday
 
 Mostly sunny, with a high near 53.
Saturday Night
 
 A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a low around 36.
Sunday
 
 A 20 percent chance of showers. Partly sunny, with a high near 51.
Sunday Night
 
 A 30 percent chance of showers. Mostly cloudy, with a low around 35.
Monday
 
 A 30 percent chance of showers. Partly sunny, with a high near 53.

 

Forecast from NOAA-NWS for Mammoth Cave KY.