S
M
T
W
T
F
S
30
51°
44°
31
50°
40°
1
54°
42°
2
52°
43°
3
56°
51°
4
58°
53°
5
54°
49°
6
55°
49°
7
54°
49°
8
51°
49°
9
52°
48°
10
51°
49°
11
53°
47°
12
51°
44°
13
54°
43°
14
55°
48°
15
54°
45°
16
53°
44°
17
52°
43°
18
52°
40°
19
48°
35°
20
48°
35°
21
47°
36°
22
47°
36°
23
44°
35°
24
47°
37°
25
46°
36°
26
48°
33°
27
43°
32°
28
48°
38°
29
47°
37°
30
42°
35°
1
45°
34°
2
43°
33°
3
41°
34°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Lower Kuskokwim Census Subarea
Lower Kuskokwim Census Subarea's September 2026 forecast shows daily high temperatures ranging from 41° to 55°, with overnight lows between 32° and 48°. The average high for September is 48° with an average low of 38°. 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 Lower Kuskokwim Census Subarea. See also: October | November | December.