S
M
T
W
T
F
S
27
87°
77°
28
88°
78°
29
86°
76°
30
86°
77°
1
87°
78°
2
88°
77°
3
88°
77°
4
87°
76°
5
87°
77°
6
86°
78°
7
87°
76°
8
88°
77°
9
87°
76°
10
87°
77°
11
86°
77°
12
87°
76°
13
87°
77°
14
86°
77°
15
87°
76°
16
86°
76°
17
86°
75°
18
85°
76°
19
86°
76°
20
86°
74°
21
85°
76°
22
85°
76°
23
84°
75°
24
85°
72°
25
84°
74°
26
81°
75°
27
82°
76°
28
84°
75°
29
83°
74°
30
84°
74°
31
84°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Cudjoe Key
Cudjoe Key's October 2026 forecast shows daily high temperatures ranging from 81° to 88°, with overnight lows between 72° and 78°. The average high for October is 86° with an average low of 76°. 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 Cudjoe Key. See also: November | December | January.