S
M
T
W
T
F
S
28
90°
73°
29
91°
75°
30
94°
76°
1
92°
74°
2
94°
74°
3
92°
75°
4
90°
70°
5
90°
68°
6
87°
67°
7
89°
71°
8
91°
68°
9
84°
71°
10
90°
69°
11
85°
70°
12
86°
65°
13
87°
64°
14
89°
67°
15
90°
70°
16
90°
71°
17
91°
72°
18
92°
72°
19
93°
71°
20
91°
67°
21
88°
67°
22
89°
66°
23
90°
66°
24
90°
68°
25
89°
67°
26
94°
73°
27
92°
72°
28
92°
71°
29
91°
71°
30
92°
70°
31
89°
71°
1
93°
73°
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 86° to 94°, with overnight lows between 64° and 73°. The average high for July is 90° with an average low of 69°. 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.