S
M
T
W
T
F
S
26
56°
50°
27
56°
48°
28
57°
48°
29
56°
49°
30
56°
50°
31
57°
48°
1
56°
46°
2
55°
46°
3
59°
51°
4
60°
50°
5
60°
49°
6
59°
50°
7
60°
50°
8
59°
51°
9
60°
49°
10
61°
49°
11
60°
50°
12
59°
50°
13
60°
51°
14
61°
51°
15
61°
50°
16
60°
50°
17
61°
49°
18
60°
50°
19
60°
50°
20
59°
49°
21
60°
50°
22
60°
50°
23
59°
49°
24
60°
48°
25
60°
49°
26
59°
48°
27
59°
50°
28
58°
49°
29
59°
50°
30
60°
49°
31
59°
49°
1
59°
48°
2
58°
48°
3
58°
47°
4
57°
48°
5
58°
43°
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 61°, with overnight lows between 43° and 51°. The average high for August is 59° 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.