S
M
T
W
T
F
S
31
67°
49°
1
72°
54°
2
72°
55°
3
74°
55°
4
74°
50°
5
65°
48°
6
66°
53°
7
71°
55°
8
77°
56°
9
77°
55°
10
75°
55°
11
73°
56°
12
69°
57°
13
73°
56°
14
70°
49°
15
72°
54°
16
78°
57°
17
78°
57°
18
76°
59°
19
78°
51°
20
78°
51°
21
69°
53°
22
74°
56°
23
75°
55°
24
71°
53°
25
71°
52°
26
72°
51°
27
72°
52°
28
74°
53°
29
73°
56°
30
74°
57°
1
79°
56°
2
72°
53°
3
78°
54°
4
82°
59°
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 65° to 82°, with overnight lows between 48° and 59°. The average high for June is 73° 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.