S
M
T
W
T
F
S
31
64°
53°
1
65°
48°
2
64°
46°
3
67°
54°
4
69°
51°
5
66°
54°
6
74°
56°
7
74°
55°
8
69°
57°
9
72°
57°
10
75°
56°
11
74°
54°
12
68°
53°
13
71°
50°
14
68°
52°
15
80°
60°
16
80°
59°
17
78°
57°
18
77°
59°
19
78°
53°
20
75°
51°
21
73°
53°
22
79°
54°
23
72°
51°
24
71°
58°
25
76°
52°
26
80°
51°
27
77°
52°
28
77°
57°
29
79°
58°
30
73°
56°
1
79°
57°
2
78°
61°
3
82°
56°
4
74°
54°
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 82°, with overnight lows between 46° and 61°. The average high for June is 74° 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.