S
M
T
W
T
F
S
31
66°
52°
1
64°
52°
2
67°
51°
3
73°
54°
4
72°
55°
5
71°
46°
6
68°
50°
7
76°
57°
8
78°
50°
9
73°
46°
10
69°
52°
11
72°
50°
12
73°
53°
13
78°
49°
14
79°
51°
15
81°
58°
16
81°
58°
17
71°
57°
18
75°
58°
19
74°
58°
20
73°
57°
21
79°
59°
22
76°
57°
23
71°
53°
24
71°
52°
25
72°
53°
26
71°
52°
27
71°
51°
28
72°
52°
29
73°
53°
30
76°
60°
1
80°
56°
2
73°
60°
3
76°
56°
4
73°
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 64° to 81°, with overnight lows between 46° and 60°. 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.