S
M
T
W
T
F
S
27
63°
38°
28
55°
43°
29
54°
41°
30
51°
43°
1
58°
50°
2
60°
42°
3
57°
39°
4
53°
39°
5
52°
40°
6
54°
37°
7
51°
38°
8
50°
38°
9
51°
39°
10
52°
32°
11
48°
38°
12
53°
37°
13
48°
35°
14
45°
35°
15
42°
34°
16
45°
36°
17
48°
36°
18
45°
35°
19
50°
35°
20
43°
34°
21
48°
32°
22
41°
32°
23
42°
33°
24
44°
33°
25
48°
34°
26
47°
33°
27
42°
32°
28
38°
33°
29
42°
33°
30
42°
32°
31
45°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Sept-Îles
Sept-Îles's October 2026 forecast shows daily high temperatures ranging from 38° to 63°, with overnight lows between 32° and 50°. The average high for October is 49° with an average low of 36°. 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 Sept-Îles. See also: November | December | January.