S
M
T
W
T
F
S
26
65°
37°
27
72°
38°
28
74°
42°
29
61°
53°
30
53°
40°
1
53°
37°
2
51°
39°
3
56°
38°
4
66°
45°
5
72°
49°
6
49°
42°
7
53°
42°
8
54°
41°
9
64°
32°
10
60°
45°
11
54°
40°
12
57°
40°
13
50°
44°
14
56°
46°
15
66°
51°
16
74°
51°
17
73°
56°
18
71°
48°
19
82°
57°
20
76°
47°
21
60°
41°
22
67°
35°
23
69°
42°
24
57°
51°
25
68°
53°
26
N/A
27
74°
51°
28
67°
51°
29
64°
45°
30
59°
45°
31
68°
50°
1
71°
53°
2
73°
55°
3
77°
58°
4
78°
56°
5
77°
55°
6
73°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Laval-Ouest
Laval-Ouest's May 2026 forecast shows daily high temperatures ranging from 59° to 78°, with overnight lows between 45° and 58°. The average high for May is 71° with an average low of 52°. 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 Laval-Ouest. See also: June | July | August.