S
M
T
W
T
F
S
27
88°
78°
28
87°
77°
29
88°
78°
30
86°
78°
1
87°
77°
2
87°
78°
3
88°
78°
4
89°
79°
5
88°
78°
6
Hist. Avg.
87°
78°
7
Hist. Avg.
87°
78°
8
Hist. Avg.
87°
78°
9
Hist. Avg.
87°
78°
10
Hist. Avg.
87°
78°
11
Hist. Avg.
87°
78°
12
Hist. Avg.
86°
78°
13
Hist. Avg.
86°
77°
14
Hist. Avg.
86°
77°
15
Hist. Avg.
86°
77°
16
Hist. Avg.
86°
77°
17
Hist. Avg.
86°
77°
18
Hist. Avg.
86°
77°
19
Hist. Avg.
85°
76°
20
Hist. Avg.
85°
76°
21
Hist. Avg.
85°
76°
22
Hist. Avg.
85°
76°
23
Hist. Avg.
85°
76°
24
Hist. Avg.
85°
76°
25
Hist. Avg.
84°
76°
26
Hist. Avg.
84°
75°
27
Hist. Avg.
84°
75°
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 86° to 89°, with overnight lows between 77° and 79°. The average high for October is 88° with an average low of 78°. 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.
