S
M
T
W
T
F
S
26
65°
44°
27
73°
50°
28
73°
54°
29
66°
53°
30
54°
41°
1
54°
37°
2
49°
39°
3
55°
40°
4
65°
45°
5
71°
49°
6
50°
42°
7
53°
43°
8
54°
43°
9
64°
41°
10
60°
47°
11
54°
44°
12
56°
42°
13
52°
46°
14
54°
46°
15
67°
50°
16
74°
53°
17
74°
58°
18
70°
49°
19
83°
59°
20
74°
42°
21
61°
44°
22
67°
51°
23
66°
52°
24
62°
49°
25
62°
54°
26
70°
54°
27
74°
58°
28
73°
51°
29
74°
59°
30
72°
58°
31
76°
61°
1
76°
61°
2
77°
60°
3
75°
55°
4
76°
56°
5
75°
57°
6
75°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Vieux-Montréal
Vieux-Montréal's May 2026 forecast shows daily high temperatures ranging from 61° to 77°, with overnight lows between 42° and 61°. The average high for May is 71° 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 May weather will actually feel in Vieux-Montréal. See also: June | July | August.
