S
M
T
W
T
F
S
27
86°
79°
28
86°
78°
29
87°
73°
30
83°
74°
1
84°
76°
2
85°
83°
3
88°
81°
4
88°
82°
5
88°
82°
6
87°
82°
7
88°
81°
8
88°
81°
9
88°
81°
10
88°
83°
11
89°
82°
12
90°
81°
13
88°
82°
14
89°
81°
15
89°
79°
16
89°
82°
17
87°
77°
18
85°
77°
19
86°
78°
20
84°
75°
21
83°
74°
22
83°
74°
23
81°
74°
24
84°
75°
25
83°
72°
26
82°
74°
27
84°
75°
28
86°
75°
29
86°
78°
30
84°
77°
31
87°
79°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Duck Key
Duck Key's October 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for October is ° with an average low of °. 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 Duck Key. See also: November | December | January.