S
M
T
W
T
F
S
27
79°
43°
28
80°
44°
29
84°
46°
30
89°
52°
1
92°
66°
2
78°
63°
3
75°
59°
4
78°
53°
5
78°
48°
6
79°
46°
7
85°
45°
8
84°
49°
9
85°
47°
10
67°
58°
11
65°
53°
12
87°
49°
13
91°
60°
14
89°
66°
15
88°
69°
16
72°
49°
17
60°
39°
18
67°
37°
19
71°
36°
20
73°
40°
21
78°
43°
22
76°
45°
23
74°
47°
24
78°
46°
25
75°
50°
26
72°
51°
27
73°
50°
28
64°
46°
29
60°
42°
30
63°
47°
31
63°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Mammoth Cave
Mammoth Cave's October 2026 forecast shows daily high temperatures ranging from 60° to 78°, with overnight lows between 42° and 51°. The average high for October is 71° with an average low of 46°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Mammoth Cave. See also: November | December | January.
