S
M
T
W
T
F
S
27
67°
59°
28
74°
58°
29
74°
56°
30
67°
53°
1
66°
53°
2
68°
57°
3
72°
54°
4
72°
57°
5
71°
56°
6
65°
56°
7
71°
57°
8
71°
54°
9
70°
52°
10
61°
52°
11
67°
48°
12
60°
50°
13
65°
53°
14
69°
54°
15
69°
53°
16
67°
52°
17
69°
50°
18
60°
46°
19
58°
51°
20
61°
52°
21
66°
51°
22
66°
45°
23
55°
40°
24
54°
44°
25
58°
50°
26
67°
45°
27
62°
38°
28
57°
38°
29
58°
43°
30
61°
47°
31
63°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Islandia
Islandia's October 2026 forecast shows daily high temperatures ranging from 54° to 74°, with overnight lows between 38° and 59°. The average high for October is 65° with an average low of 51°. 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 Islandia. See also: November | December | January.