S
M
T
W
T
F
S
27
85°
66°
28
86°
69°
29
87°
71°
30
89°
73°
1
90°
75°
2
89°
75°
3
89°
73°
4
91°
74°
5
89°
75°
6
86°
74°
7
86°
73°
8
85°
72°
9
84°
72°
10
84°
71°
11
83°
74°
12
87°
73°
13
85°
72°
14
86°
72°
15
82°
71°
16
82°
72°
17
83°
71°
18
81°
71°
19
82°
70°
20
81°
67°
21
81°
64°
22
78°
64°
23
79°
68°
24
80°
69°
25
80°
68°
26
81°
68°
27
79°
69°
28
79°
67°
29
78°
68°
30
79°
63°
31
77°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Keys
Keys's October 2026 forecast shows daily high temperatures ranging from 77° to 91°, with overnight lows between 61° and 75°. The average high for October is 83° with an average low of 70°. 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 Keys. See also: November | December | January.
