S
M
T
W
T
F
S
27
89°
77°
28
88°
79°
29
89°
78°
30
88°
79°
1
88°
80°
2
89°
79°
3
89°
79°
4
88°
78°
5
89°
79°
6
89°
78°
7
88°
78°
8
88°
77°
9
87°
77°
10
88°
78°
11
88°
79°
12
87°
76°
13
88°
76°
14
87°
78°
15
87°
78°
16
86°
77°
17
87°
77°
18
86°
78°
19
87°
78°
20
86°
74°
21
87°
74°
22
84°
77°
23
85°
78°
24
85°
78°
25
83°
76°
26
85°
74°
27
85°
73°
28
Hist. Avg.
84°
75°
29
Hist. Avg.
84°
75°
30
Hist. Avg.
84°
75°
31
Hist. Avg.
83°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Key West
Key West's October 2026 forecast shows daily high temperatures ranging from 83° to 89°, with overnight lows between 73° and 80°. The average high for October is 87° with an average low of 77°. 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.
