S
M
T
W
T
F
S
31
64°
52°
1
67°
52°
2
67°
54°
3
68°
54°
4
65°
55°
5
67°
55°
6
74°
54°
7
74°
57°
8
73°
57°
9
75°
48°
10
65°
47°
11
66°
48°
12
65°
49°
13
66°
48°
14
68°
54°
15
69°
52°
16
68°
50°
17
69°
52°
18
68°
54°
19
68°
51°
20
69°
50°
21
69°
52°
22
70°
60°
23
75°
60°
24
76°
59°
25
71°
59°
26
71°
58°
27
72°
58°
28
74°
61°
29
79°
61°
30
81°
54°
1
79°
58°
2
77°
59°
3
74°
54°
4
75°
56°
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 81°, with overnight lows between 47° and 61°. The average high for June is 71° with an average low of 54°. 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.