S
M
T
W
T
F
S
30
57°
48°
31
56°
49°
1
57°
49°
2
58°
48°
3
59°
50°
4
59°
49°
5
58°
49°
6
59°
48°
7
59°
49°
8
58°
47°
9
57°
48°
10
58°
45°
11
57°
44°
12
57°
44°
13
52°
46°
14
53°
45°
15
54°
43°
16
54°
43°
17
53°
44°
18
51°
43°
19
51°
41°
20
52°
43°
21
51°
46°
22
54°
45°
23
54°
45°
24
53°
44°
25
53°
44°
26
52°
42°
27
51°
43°
28
52°
44°
29
51°
42°
30
51°
44°
1
52°
40°
2
53°
41°
3
51°
42°
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 40° and 50°. 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.
