S
M
T
W
T
F
S
27
63°
47°
28
N/A
29
66°
54°
30
77°
48°
1
67°
45°
2
60°
31°
3
55°
29°
4
61°
40°
5
58°
34°
6
71°
33°
7
64°
36°
8
59°
43°
9
55°
50°
10
68°
60°
11
66°
46°
12
49°
41°
13
46°
39°
14
50°
46°
15
54°
43°
16
51°
42°
17
50°
40°
18
51°
42°
19
53°
42°
20
51°
45°
21
52°
32°
22
52°
38°
23
40°
37°
24
48°
38°
25
51°
38°
26
46°
35°
27
42°
33°
28
38°
35°
29
48°
37°
30
44°
36°
31
49°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Isle Royale National Park
Isle Royale National Park's October 2026 forecast shows daily high temperatures ranging from 38° to 68°, with overnight lows between 32° and 60°. The average high for October is 51° with an average low of 41°. 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 Isle Royale National Park. See also: November | December | January.
