S
M
T
W
T
F
S
31
76°
59°
1
76°
58°
2
74°
58°
3
73°
60°
4
74°
61°
5
75°
57°
6
75°
56°
7
72°
56°
8
70°
55°
9
68°
57°
10
74°
57°
11
76°
58°
12
77°
59°
13
76°
59°
14
76°
58°
15
77°
58°
16
77°
57°
17
71°
54°
18
69°
51°
19
69°
50°
20
68°
51°
21
68°
51°
22
69°
50°
23
69°
51°
24
70°
52°
25
72°
59°
26
72°
54°
27
71°
52°
28
70°
57°
29
71°
55°
30
73°
59°
1
76°
60°
2
78°
58°
3
80°
59°
4
73°
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 68° to 80°, with overnight lows between 50° and 61°. 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.