S
M
T
W
T
F
S
30
55°
47°
31
56°
44°
1
54°
43°
2
50°
43°
3
50°
42°
4
49°
42°
5
48°
41°
6
48°
41°
7
49°
42°
8
48°
41°
9
47°
41°
10
47°
40°
11
48°
39°
12
46°
39°
13
45°
38°
14
44°
38°
15
46°
39°
16
45°
38°
17
42°
36°
18
42°
37°
19
43°
40°
20
44°
42°
21
45°
41°
22
46°
41°
23
46°
40°
24
45°
37°
25
45°
40°
26
43°
28°
27
45°
36°
28
44°
35°
29
39°
35°
30
38°
30°
1
37°
29°
2
39°
37°
3
42°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Kotzebue
Kotzebue's September 2026 forecast shows daily high temperatures ranging from 37° to 56°, with overnight lows between 28° and 47°. The average high for September is 46° with an average low of 39°. 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 Kotzebue. See also: October | November | December.