S
M
T
W
T
F
S
27
83°
63°
28
85°
62°
29
85°
53°
30
82°
53°
1
78°
54°
2
77°
51°
3
76°
53°
4
76°
56°
5
79°
57°
6
82°
53°
7
81°
55°
8
Hist. Avg.
79°
54°
9
Hist. Avg.
79°
54°
10
Hist. Avg.
78°
53°
11
Hist. Avg.
78°
53°
12
Hist. Avg.
78°
52°
13
Hist. Avg.
77°
52°
14
Hist. Avg.
77°
52°
15
Hist. Avg.
76°
51°
16
Hist. Avg.
76°
51°
17
Hist. Avg.
76°
50°
18
Hist. Avg.
75°
50°
19
Hist. Avg.
75°
50°
20
Hist. Avg.
74°
49°
21
Hist. Avg.
74°
49°
22
Hist. Avg.
74°
49°
23
Hist. Avg.
73°
48°
24
Hist. Avg.
73°
48°
25
Hist. Avg.
72°
48°
26
Hist. Avg.
72°
47°
27
Hist. Avg.
72°
47°
28
Hist. Avg.
71°
46°
29
Hist. Avg.
71°
46°
30
Hist. Avg.
70°
46°
31
Hist. Avg.
70°
45°
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 76° to 85°, with overnight lows between 51° and 63°. The average high for October is 80° with an average low of 55°. 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.
