S
M
T
W
T
F
S
26
71°
51°
27
71°
52°
28
72°
53°
29
75°
53°
30
71°
50°
31
70°
49°
1
69°
49°
2
71°
51°
3
73°
57°
4
71°
52°
5
71°
49°
6
72°
50°
7
73°
56°
8
74°
57°
9
78°
55°
10
72°
49°
11
71°
48°
12
70°
49°
13
70°
48°
14
71°
46°
15
70°
48°
16
74°
50°
17
70°
47°
18
70°
47°
19
74°
49°
20
76°
53°
21
76°
54°
22
75°
54°
23
76°
53°
24
75°
48°
25
75°
45°
26
67°
43°
27
67°
43°
28
68°
44°
29
68°
50°
30
67°
47°
31
68°
51°
1
70°
50°
2
71°
43°
3
65°
42°
4
70°
46°
5
72°
49°
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 65° to 78°, with overnight lows between 42° and 57°. The average high for August is 71° with an average low of 50°. 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.
