S
M
T
W
T
F
S
31
63°
49°
1
68°
53°
2
74°
56°
3
76°
57°
4
81°
63°
5
80°
60°
6
76°
59°
7
75°
61°
8
78°
60°
9
80°
61°
10
75°
61°
11
76°
62°
12
75°
63°
13
69°
57°
14
70°
49°
15
67°
49°
16
66°
50°
17
68°
53°
18
69°
54°
19
70°
55°
20
70°
52°
21
72°
55°
22
74°
59°
23
74°
57°
24
71°
59°
25
71°
56°
26
70°
54°
27
71°
59°
28
72°
60°
29
71°
54°
30
70°
53°
1
72°
55°
2
72°
60°
3
77°
61°
4
78°
60°
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 63° to 81°, with overnight lows between 49° and 63°. The average high for June is 73° with an average low of 57°. 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.