S
M
T
W
T
F
S
28
94°
77°
29
96°
78°
30
96°
78°
1
96°
75°
2
95°
77°
3
96°
76°
4
96°
71°
5
90°
70°
6
96°
71°
7
95°
70°
8
96°
78°
9
100°
79°
10
98°
77°
11
96°
75°
12
91°
73°
13
92°
73°
14
93°
72°
15
94°
75°
16
98°
74°
17
97°
74°
18
98°
74°
19
96°
75°
20
98°
74°
21
94°
71°
22
98°
76°
23
97°
75°
24
96°
75°
25
97°
75°
26
98°
76°
27
98°
76°
28
97°
75°
29
96°
75°
30
95°
74°
31
95°
74°
1
94°
75°
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 91° to 100°, with overnight lows between 71° and 79°. The average high for July is 96° with an average low of 75°. 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.