S
M
T
W
T
F
S
30
67°
60°
31
74°
58°
1
63°
57°
2
60°
50°
3
57°
49°
4
57°
48°
5
55°
46°
6
55°
47°
7
54°
47°
8
56°
48°
9
57°
47°
10
55°
46°
11
55°
46°
12
53°
46°
13
54°
46°
14
47°
38°
15
51°
46°
16
54°
46°
17
53°
46°
18
53°
45°
19
50°
46°
20
50°
45°
21
51°
45°
22
54°
44°
23
49°
43°
24
48°
43°
25
48°
44°
26
48°
43°
27
48°
44°
28
49°
44°
29
50°
43°
30
48°
43°
1
48°
42°
2
49°
42°
3
47°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Adak
Adak's September 2026 forecast shows daily high temperatures ranging from 47° to 63°, with overnight lows between 38° and 57°. The average high for September is 52° 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 Adak. See also: October | November | December.
