S
M
T
W
T
F
S
26
64°
56°
27
64°
54°
28
68°
57°
29
72°
55°
30
68°
52°
31
66°
57°
1
70°
55°
2
72°
52°
3
79°
51°
4
76°
48°
5
77°
49°
6
80°
53°
7
81°
54°
8
76°
50°
9
68°
54°
10
69°
56°
11
72°
55°
12
73°
52°
13
71°
54°
14
73°
53°
15
73°
54°
16
72°
52°
17
73°
51°
18
73°
51°
19
71°
50°
20
71°
48°
21
68°
50°
22
68°
50°
23
69°
47°
24
67°
47°
25
72°
48°
26
74°
51°
27
72°
51°
28
69°
50°
29
68°
47°
30
67°
46°
31
71°
46°
1
69°
48°
2
66°
46°
3
66°
47°
4
67°
46°
5
64°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mistake Island
Mistake Island's August 2026 forecast shows daily high temperatures ranging from 64° to 81°, with overnight lows between 45° and 56°. 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 Mistake Island. See also: September | October | November.
