S
M
T
W
T
F
S
30
73°
53°
31
75°
59°
1
73°
61°
2
79°
60°
3
75°
52°
4
73°
50°
5
71°
52°
6
69°
52°
7
72°
58°
8
77°
58°
9
78°
59°
10
78°
53°
11
72°
54°
12
70°
57°
13
70°
49°
14
69°
52°
15
67°
52°
16
68°
49°
17
69°
55°
18
73°
46°
19
67°
48°
20
68°
45°
21
70°
47°
22
67°
52°
23
70°
54°
24
74°
55°
25
72°
54°
26
72°
55°
27
71°
54°
28
74°
50°
29
71°
51°
30
69°
54°
1
71°
51°
2
72°
43°
3
69°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Allendale Charter Township
Allendale Charter Township's September 2026 forecast shows daily high temperatures ranging from 67° to 79°, with overnight lows between 40° and 61°. The average high for September is 72° with an average low of 52°. 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 Allendale Charter Township. See also: October | November | December.