S
M
T
W
T
F
S
26
70°
61°
27
68°
61°
28
77°
61°
29
73°
63°
30
72°
63°
31
N/A
1
71°
57°
2
76°
63°
3
77°
63°
4
74°
63°
5
73°
62°
6
74°
62°
7
72°
62°
8
71°
61°
9
73°
62°
10
74°
63°
11
72°
62°
12
73°
63°
13
69°
63°
14
68°
64°
15
68°
64°
16
67°
63°
17
68°
64°
18
67°
63°
19
67°
63°
20
66°
62°
21
64°
62°
22
63°
61°
23
64°
62°
24
64°
63°
25
64°
63°
26
66°
62°
27
65°
63°
28
63°
62°
29
62°
61°
30
62°
62°
31
63°
61°
1
62°
61°
2
62°
60°
3
63°
61°
4
63°
59°
5
61°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in L'Islet
L'Islet's August 2026 forecast shows daily high temperatures ranging from 61° to 77°, with overnight lows between 57° and 64°. The average high for August is 68° with an average low of 62°. 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'Islet. See also: September | October | November.
