S
M
T
W
T
F
S
26
80°
62°
27
82°
62°
28
79°
60°
29
74°
61°
30
81°
62°
31
74°
57°
1
79°
55°
2
74°
55°
3
72°
53°
4
73°
54°
5
74°
54°
6
73°
55°
7
76°
54°
8
78°
55°
9
80°
62°
10
79°
60°
11
76°
62°
12
81°
62°
13
81°
61°
14
80°
57°
15
76°
52°
16
73°
58°
17
76°
51°
18
72°
53°
19
71°
52°
20
72°
54°
21
74°
55°
22
72°
53°
23
71°
53°
24
74°
59°
25
71°
51°
26
73°
59°
27
77°
53°
28
77°
52°
29
69°
55°
30
68°
50°
31
69°
51°
1
70°
49°
2
69°
50°
3
69°
56°
4
73°
50°
5
69°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Laval-Ouest
Laval-Ouest's August 2026 forecast shows daily high temperatures ranging from 68° to 82°, with overnight lows between 48° and 62°. The average high for August is 75° with an average low of 55°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Laval-Ouest. See also: September | October | November.