Mammoth Cave weather live forecast

Today's maximum temperature in Mammoth Cave is expected to be 36°C. Select a day from the live weather forecast for Mammoth Cave, Kentucky, USA for more weather parameters.

Thursday
17th Sep
36

23

10

7
Friday
18th Sep
35

23

8

7
Saturday
19th Sep
36

22

7

7
Sunday
20th Sep
36

23

7

6
Monday
21st Sep
33

21

6

7

5-day weather forecast updated at 04:03 on Thursday 17th September 2026 GMT

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The 5-day weather forecast for Kentucky (Mammoth Cave) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Mammoth Cave weather forecast by day

Below are the detailed weather forecasts for Mammoth Cave for the next 5 days.

Mammoth Cave weather for Thursday 17th September 2026

Expect scattered clouds in Mammoth Cave, Kentucky with a maximum temperature of 36°C, very high levels of heat & humidity, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the north-west.

36
°C maximum temperature
23
°C minimum temperature
scattered clouds
10
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
H
high heat & humidity
5
kph wind from NW

Mammoth Cave weather for Friday 18th September 2026

Expect isolated thunderstorms in Mammoth Cave, Kentucky with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 34% chance of some rain and little or no wind of 6 kph from the north-west.

35
°C maximum temperature
23
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
7
UV index (High)
34
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
6
kph wind from NW

Mammoth Cave weather for Saturday 19th September 2026

Expect broken clouds in Mammoth Cave, Kentucky with a maximum temperature of 36°C, high levels of heat & humidity, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 3 kph from the south-east.

36
°C maximum temperature
22
°C minimum temperature
broken clouds
7
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
H
high heat & humidity
3
kph wind from SE

Mammoth Cave weather for Sunday 20th September 2026

Expect isolated thunderstorms in Mammoth Cave, Kentucky with a maximum temperature of 36°C, high levels of heat & humidity, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 25% chance of some rain and a light breeze of 8 kph from the south.

36
°C maximum temperature
23
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
6
UV index (High)
25
% chance of some rain
<10
mm of rainfall expected
H
high heat & humidity
8
kph wind from S

Mammoth Cave weather for Monday 21st September 2026

Expect isolated thunderstorms in Mammoth Cave, Kentucky with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 48% chance of some rain and little or no wind of 6 kph from the south-west.