S
M
T
W
T
F
S
28
90°
73°
29
91°
75°
30
95°
72°
1
93°
73°
2
93°
73°
3
91°
72°
4
92°
71°
5
91°
71°
6
88°
69°
7
87°
68°
8
88°
69°
9
89°
68°
10
88°
69°
11
84°
68°
12
89°
69°
13
88°
67°
14
87°
66°
15
87°
65°
16
85°
66°
17
88°
67°
18
91°
71°
19
92°
71°
20
91°
70°
21
91°
71°
22
90°
72°
23
92°
72°
24
92°
71°
25
93°
71°
26
92°
72°
27
92°
72°
28
91°
71°
29
93°
72°
30
94°
72°
31
93°
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 84° to 95°, with overnight lows between 65° and 73°. The average high for July is 90° with an average low of 70°. 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.