S
M
T
W
T
F
S
31
72°
54°
1
69°
51°
2
64°
48°
3
68°
52°
4
71°
55°
5
68°
55°
6
68°
52°
7
65°
50°
8
66°
47°
9
65°
50°
10
66°
51°
11
72°
56°
12
72°
53°
13
69°
57°
14
76°
59°
15
77°
59°
16
77°
60°
17
78°
58°
18
71°
58°
19
76°
59°
20
78°
59°
21
76°
57°
22
78°
60°
23
79°
59°
24
78°
57°
25
80°
49°
26
73°
51°
27
75°
56°
28
80°
59°
29
80°
53°
30
75°
53°
1
73°
54°
2
72°
52°
3
72°
53°
4
74°
52°
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 64° to 80°, with overnight lows between 47° and 60°. The average high for June is 73° with an average low of 55°. 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.