S
M
T
W
T
F
S
28
71°
59°
29
79°
57°
30
72°
55°
1
71°
60°
2
78°
59°
3
73°
55°
4
72°
55°
5
71°
54°
6
71°
54°
7
72°
55°
8
72°
58°
9
73°
61°
10
75°
54°
11
78°
55°
12
76°
57°
13
80°
60°
14
81°
61°
15
75°
55°
16
77°
62°
17
82°
62°
18
75°
61°
19
82°
62°
20
78°
61°
21
78°
62°
22
82°
62°
23
82°
61°
24
80°
55°
25
77°
54°
26
78°
61°
27
82°
63°
28
83°
58°
29
77°
54°
30
75°
56°
31
75°
53°
1
77°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Montreal
Montreal's July 2026 forecast shows daily high temperatures ranging from 71° to 83°, with overnight lows between 53° and 63°. The average high for July is 77° with an average low of 58°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Montreal. See also: August | September | October.