S
M
T
W
T
F
S
30
58°
55°
31
57°
54°
1
56°
53°
2
54°
50°
3
52°
49°
4
53°
47°
5
52°
48°
6
51°
47°
7
52°
47°
8
53°
49°
9
58°
55°
10
61°
54°
11
55°
50°
12
50°
46°
13
49°
46°
14
50°
44°
15
45°
41°
16
51°
47°
17
50°
47°
18
47°
46°
19
47°
46°
20
48°
45°
21
46°
45°
22
46°
45°
23
47°
44°
24
46°
45°
25
46°
45°
26
47°
45°
27
46°
45°
28
47°
44°
29
47°
45°
30
47°
44°
1
46°
45°
2
46°
45°
3
45°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Amchitka
Amchitka's September 2026 forecast shows daily high temperatures ranging from 45° to 61°, with overnight lows between 41° and 55°. The average high for September is 49° with an average low of 46°. 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 Amchitka. See also: October | November | December.
