S
M
T
W
T
F
S
26
86°
65°
27
86°
68°
28
74°
66°
29
81°
68°
30
80°
67°
31
81°
64°
1
82°
67°
2
82°
69°
3
74°
66°
4
83°
61°
5
86°
64°
6
84°
68°
7
84°
70°
8
85°
69°
9
81°
68°
10
79°
66°
11
80°
64°
12
79°
62°
13
79°
62°
14
77°
57°
15
75°
58°
16
73°
63°
17
77°
60°
18
80°
63°
19
79°
64°
20
74°
57°
21
73°
59°
22
74°
61°
23
76°
63°
24
76°
60°
25
74°
58°
26
72°
59°
27
74°
58°
28
69°
54°
29
69°
59°
30
74°
60°
31
75°
59°
1
76°
60°
2
77°
60°
3
76°
59°
4
73°
58°
5
72°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Laval
Laval's August 2026 forecast shows daily high temperatures ranging from 69° to 80°, with overnight lows between 54° and 64°. The average high for August is 74° with an average low of 60°. 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. See also: September | October | November.
