S
M
T
W
T
F
S
26
55°
46°
27
55°
47°
28
56°
49°
29
56°
47°
30
57°
47°
31
56°
50°
1
56°
49°
2
57°
48°
3
56°
48°
4
56°
47°
5
57°
48°
6
57°
47°
7
59°
49°
8
59°
51°
9
59°
51°
10
60°
50°
11
61°
51°
12
60°
50°
13
61°
51°
14
61°
51°
15
60°
50°
16
60°
51°
17
59°
51°
18
60°
50°
19
61°
52°
20
62°
50°
21
62°
48°
22
61°
49°
23
58°
50°
24
58°
48°
25
59°
48°
26
59°
47°
27
57°
47°
28
60°
46°
29
57°
47°
30
56°
48°
31
59°
49°
1
58°
48°
2
58°
48°
3
57°
47°
4
56°
47°
5
56°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Dutch Harbor
Dutch Harbor's August 2026 forecast shows daily high temperatures ranging from 55° to 62°, with overnight lows between 46° and 52°. The average high for August is 58° with an average low of 49°. 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 Dutch Harbor. See also: September | October | November.