S
M
T
W
T
F
S
27
69°
41°
28
62°
39°
29
64°
36°
30
69°
40°
1
70°
53°
2
60°
42°
3
55°
31°
4
56°
30°
5
53°
41°
6
48°
30°
7
49°
30°
8
54°
36°
9
47°
33°
10
49°
31°
11
70°
51°
12
57°
41°
13
45°
34°
14
48°
32°
15
47°
32°
16
51°
35°
17
48°
34°
18
50°
32°
19
51°
31°
20
48°
32°
21
49°
30°
22
48°
36°
23
40°
26°
24
39°
30°
25
44°
35°
26
40°
25°
27
41°
25°
28
38°
31°
29
38°
34°
30
42°
32°
31
40°
29°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Dolbeau-Mistassini
Dolbeau-Mistassini's October 2026 forecast shows daily high temperatures ranging from 38° to 70°, with overnight lows between 25° and 51°. The average high for October is 47° with an average low of 33°. 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 Dolbeau-Mistassini. See also: November | December | January.