S
M
T
W
T
F
S
28
78°
63°
29
78°
64°
30
80°
65°
1
79°
66°
2
80°
65°
3
81°
60°
4
73°
55°
5
72°
55°
6
73°
58°
7
75°
60°
8
77°
61°
9
79°
62°
10
74°
62°
11
75°
61°
12
78°
62°
13
74°
62°
14
75°
61°
15
75°
62°
16
74°
62°
17
75°
61°
18
75°
61°
19
74°
62°
20
80°
62°
21
79°
63°
22
78°
62°
23
74°
62°
24
75°
61°
25
79°
63°
26
78°
63°
27
81°
64°
28
81°
63°
29
78°
63°
30
79°
62°
31
79°
64°
1
81°
63°
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 72° to 81°, with overnight lows between 55° and 66°. The average high for July is 77° with an average low of 62°. 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.