S
M
T
W
T
F
S
28
78°
58°
29
86°
62°
30
90°
71°
1
84°
64°
2
88°
60°
3
78°
59°
4
75°
56°
5
76°
56°
6
80°
62°
7
80°
60°
8
83°
59°
9
79°
63°
10
81°
62°
11
78°
60°
12
76°
61°
13
80°
63°
14
76°
56°
15
73°
59°
16
76°
57°
17
72°
57°
18
72°
60°
19
73°
60°
20
77°
61°
21
79°
61°
22
79°
60°
23
77°
60°
24
77°
59°
25
79°
61°
26
77°
61°
27
78°
60°
28
78°
61°
29
76°
61°
30
78°
60°
31
72°
58°
1
71°
57°
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 88°, with overnight lows between 56° and 64°. The average high for July is 77° with an average low of 60°. 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.