S
M
T
W
T
F
S
26
80°
62°
27
82°
62°
28
79°
60°
29
74°
60°
30
81°
63°
31
76°
59°
1
79°
63°
2
82°
59°
3
76°
54°
4
75°
55°
5
74°
58°
6
75°
56°
7
81°
57°
8
76°
54°
9
77°
56°
10
81°
62°
11
81°
55°
12
79°
58°
13
79°
64°
14
83°
64°
15
79°
57°
16
80°
52°
17
72°
52°
18
72°
53°
19
74°
53°
20
72°
54°
21
69°
53°
22
72°
59°
23
71°
62°
24
78°
60°
25
80°
52°
26
78°
49°
27
69°
50°
28
69°
49°
29
70°
52°
30
70°
59°
31
75°
60°
1
77°
59°
2
77°
55°
3
74°
50°
4
75°
56°
5
76°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in L'Île-Perrot
L'Île-Perrot's August 2026 forecast shows daily high temperatures ranging from 69° to 83°, with overnight lows between 49° and 64°. The average high for August is 76° with an average low of 57°. 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 L'Île-Perrot. See also: September | October | November.