S
M
T
W
T
F
S
28
83°
61°
29
85°
60°
30
84°
65°
1
90°
72°
2
90°
72°
3
89°
69°
4
83°
63°
5
83°
63°
6
77°
62°
7
78°
63°
8
81°
67°
9
86°
65°
10
84°
66°
11
83°
65°
12
83°
67°
13
85°
66°
14
83°
67°
15
84°
63°
16
74°
59°
17
75°
62°
18
78°
61°
19
80°
63°
20
80°
64°
21
75°
64°
22
77°
63°
23
80°
64°
24
77°
64°
25
77°
63°
26
78°
64°
27
81°
64°
28
82°
63°
29
80°
64°
30
81°
65°
31
81°
65°
1
80°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Montreal–Trudeau
Montreal–Trudeau's July 2026 forecast shows daily high temperatures ranging from 74° to 90°, with overnight lows between 59° and 72°. The average high for July is 81° with an average low of 64°. 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–Trudeau. See also: August | September | October.
