S
M
T
W
T
F
S
27
69°
46°
28
65°
44°
29
59°
42°
30
57°
41°
1
56°
47°
2
65°
49°
3
68°
36°
4
64°
33°
5
53°
35°
6
54°
36°
7
58°
40°
8
63°
45°
9
62°
44°
10
59°
38°
11
59°
39°
12
52°
34°
13
50°
34°
14
48°
35°
15
49°
34°
16
51°
33°
17
52°
32°
18
49°
36°
19
55°
38°
20
58°
41°
21
59°
40°
22
58°
43°
23
59°
40°
24
58°
35°
25
55°
30°
26
49°
32°
27
48°
30°
28
43°
31°
29
45°
30°
30
44°
30°
31
Hist. Avg.
50°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Montreal
Montreal's October 2026 forecast shows daily high temperatures ranging from 43° to 69°, with overnight lows between 30° and 49°. The average high for October is 56° with an average low of 37°. 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 Montreal. See also: November | December | January.
