S
M
T
W
T
F
S
30
59°
48°
31
56°
49°
1
56°
48°
2
57°
47°
3
56°
47°
4
56°
46°
5
55°
45°
6
55°
45°
7
56°
46°
8
54°
44°
9
53°
45°
10
53°
45°
11
54°
46°
12
54°
47°
13
57°
47°
14
55°
43°
15
57°
44°
16
56°
43°
17
51°
43°
18
52°
45°
19
53°
45°
20
54°
44°
21
54°
45°
22
53°
44°
23
53°
45°
24
54°
45°
25
53°
44°
26
53°
39°
27
54°
44°
28
54°
44°
29
53°
43°
30
52°
44°
1
53°
44°
2
52°
43°
3
52°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Dutch Harbor
Dutch Harbor's September 2026 forecast shows daily high temperatures ranging from 51° to 59°, with overnight lows between 39° and 49°. The average high for September is 54° with an average low of 45°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Dutch Harbor. See also: October | November | December.
