S
M
T
W
T
F
S
27
87°
79°
28
87°
78°
29
87°
72°
30
84°
75°
1
84°
74°
2
86°
76°
3
87°
82°
4
88°
83°
5
88°
82°
6
88°
79°
7
88°
82°
8
88°
82°
9
89°
84°
10
88°
83°
11
89°
82°
12
89°
82°
13
89°
78°
14
88°
81°
15
88°
83°
16
88°
81°
17
88°
76°
18
87°
78°
19
87°
77°
20
87°
76°
21
85°
74°
22
84°
74°
23
83°
75°
24
85°
76°
25
84°
75°
26
85°
76°
27
85°
77°
28
84°
76°
29
83°
75°
30
84°
76°
31
82°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Key West
Key West's October 2026 forecast shows daily high temperatures ranging from 82° to 87°, with overnight lows between 74° and 78°. The average high for October is 85° 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 Key West. See also: November | December | January.
