S
M
T
W
T
F
S
31
69°
51°
1
70°
49°
2
78°
57°
3
84°
58°
4
82°
63°
5
81°
64°
6
74°
64°
7
69°
58°
8
79°
58°
9
83°
64°
10
83°
66°
11
85°
71°
12
89°
70°
13
82°
64°
14
71°
62°
15
70°
57°
16
75°
54°
17
77°
58°
18
69°
61°
19
66°
59°
20
69°
59°
21
71°
60°
22
74°
59°
23
76°
60°
24
74°
63°
25
75°
61°
26
72°
60°
27
73°
60°
28
78°
63°
29
76°
64°
30
80°
65°
1
79°
66°
2
80°
65°
3
81°
60°
4
73°
55°
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 69° to 81°, with overnight lows between 55° and 66°. The average high for June is 75° with an average low of 61°. 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.