S
M
T
W
T
F
S
31
65°
49°
1
70°
54°
2
67°
52°
3
72°
60°
4
78°
61°
5
77°
60°
6
73°
57°
7
74°
58°
8
76°
57°
9
75°
62°
10
75°
57°
11
74°
54°
12
68°
51°
13
70°
56°
14
73°
57°
15
75°
54°
16
77°
57°
17
75°
54°
18
69°
50°
19
69°
53°
20
72°
57°
21
75°
57°
22
77°
58°
23
77°
59°
24
74°
58°
25
71°
52°
26
70°
52°
27
71°
53°
28
71°
59°
29
79°
57°
30
72°
55°
1
71°
60°
2
78°
59°
3
73°
55°
4
72°
55°
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 65° to 79°, with overnight lows between 49° and 62°. The average high for June is 73° with an average low of 56°. 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.