S
M
T
W
T
F
S
26
70°
61°
27
68°
61°
28
77°
61°
29
73°
63°
30
72°
63°
31
70°
59°
1
70°
57°
2
74°
62°
3
78°
62°
4
75°
63°
5
72°
60°
6
71°
60°
7
76°
62°
8
71°
61°
9
73°
62°
10
74°
62°
11
74°
61°
12
73°
61°
13
72°
63°
14
68°
64°
15
66°
63°
16
65°
62°
17
63°
62°
18
62°
61°
19
62°
61°
20
63°
60°
21
63°
61°
22
62°
60°
23
64°
61°
24
66°
63°
25
67°
63°
26
65°
62°
27
65°
62°
28
66°
63°
29
67°
62°
30
68°
63°
31
67°
63°
1
64°
62°
2
63°
60°
3
63°
59°
4
61°
61°
5
63°
60°
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 78°, 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.
