S
M
T
W
T
F
S
31
65°
53°
1
71°
51°
2
66°
46°
3
67°
44°
4
64°
50°
5
66°
53°
6
68°
54°
7
68°
44°
8
69°
49°
9
68°
48°
10
67°
47°
11
67°
51°
12
70°
48°
13
69°
49°
14
67°
55°
15
74°
54°
16
77°
58°
17
78°
57°
18
74°
51°
19
70°
48°
20
70°
52°
21
73°
60°
22
71°
61°
23
80°
61°
24
81°
60°
25
81°
60°
26
80°
52°
27
80°
52°
28
73°
49°
29
73°
52°
30
77°
62°
1
81°
56°
2
79°
55°
3
72°
54°
4
72°
53°
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 44° and 62°. The average high for June is 72° with an average low of 53°. 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.