S
M
T
W
T
F
S
26
71°
43°
27
70°
46°
28
68°
48°
29
73°
53°
30
73°
51°
1
76°
50°
2
75°
55°
3
67°
56°
4
63°
53°
5
61°
52°
6
59°
49°
7
61°
46°
8
68°
44°
9
74°
48°
10
64°
53°
11
60°
45°
12
60°
40°
13
58°
47°
14
53°
43°
15
55°
38°
16
59°
42°
17
61°
50°
18
60°
46°
19
62°
48°
20
67°
54°
21
74°
50°
22
83°
53°
23
85°
57°
24
88°
61°
25
88°
65°
26
89°
61°
27
88°
61°
28
90°
65°
29
89°
66°
30
90°
65°
31
72°
60°
1
78°
54°
2
72°
59°
3
68°
55°
4
68°
57°
5
66°
53°
6
69°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Longueil-Sainte-Marie
Longueil-Sainte-Marie's May 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for May is ° with an average low of °. 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 Longueil-Sainte-Marie. See also: June | July | August.
