S
M
T
W
T
F
S
27
60°
58°
28
61°
55°
29
64°
58°
30
68°
60°
1
76°
66°
2
78°
55°
3
66°
54°
4
62°
55°
5
65°
54°
6
64°
50°
7
66°
52°
8
59°
48°
9
60°
49°
10
63°
50°
11
64°
41°
12
68°
55°
13
66°
47°
14
57°
44°
15
56°
46°
16
58°
52°
17
62°
52°
18
66°
51°
19
65°
52°
20
61°
51°
21
63°
46°
22
55°
42°
23
53°
41°
24
54°
48°
25
61°
50°
26
63°
40°
27
53°
39°
28
51°
40°
29
54°
49°
30
61°
50°
31
59°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Harbor Islands
Harbor Islands's October 2026 forecast shows daily high temperatures ranging from 51° to 78°, with overnight lows between 39° and 66°. The average high for October is 62° with an average low of 50°. 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 Harbor Islands. See also: November | December | January.
