S
M
T
W
T
F
S
31
77°
46°
1
75°
40°
2
80°
50°
3
81°
62°
4
74°
64°
5
77°
55°
6
77°
51°
7
87°
58°
8
83°
64°
9
80°
62°
10
80°
63°
11
82°
64°
12
78°
59°
13
75°
59°
14
74°
57°
15
75°
57°
16
73°
52°
17
76°
56°
18
71°
55°
19
69°
54°
20
72°
52°
21
68°
49°
22
68°
54°
23
72°
58°
24
78°
59°
25
78°
55°
26
69°
51°
27
70°
52°
28
72°
58°
29
72°
58°
30
73°
59°
1
72°
57°
2
75°
59°
3
78°
60°
4
79°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Montreal
Montreal's June 2026 forecast shows daily high temperatures ranging from 68° to 87°, with overnight lows between 49° and 64°. The average high for June is 75° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Montreal. See also: July | August | September.