S
M
T
W
T
F
S
27
67°
53°
28
68°
54°
29
70°
55°
30
67°
52°
1
65°
53°
2
66°
47°
3
59°
47°
4
57°
47°
5
59°
42°
6
54°
39°
7
57°
39°
8
62°
45°
9
63°
44°
10
61°
40°
11
61°
44°
12
60°
44°
13
61°
43°
14
63°
46°
15
63°
46°
16
62°
45°
17
60°
44°
18
61°
45°
19
59°
44°
20
58°
43°
21
58°
43°
22
57°
42°
23
56°
42°
24
56°
41°
25
50°
40°
26
50°
37°
27
53°
41°
28
53°
42°
29
55°
41°
30
52°
40°
31
53°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Montreal
Montreal's October 2026 forecast shows daily high temperatures ranging from 50° to 70°, with overnight lows between 37° and 55°. The average high for October is 59° with an average low of 44°. 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.
