S
M
T
W
T
F
S
30
79°
63°
31
79°
66°
1
80°
66°
2
80°
65°
3
79°
58°
4
78°
57°
5
77°
58°
6
77°
57°
7
79°
59°
8
82°
61°
9
83°
64°
10
81°
56°
11
76°
56°
12
76°
60°
13
77°
54°
14
75°
54°
15
72°
55°
16
73°
53°
17
74°
55°
18
75°
53°
19
76°
52°
20
74°
56°
21
77°
54°
22
73°
59°
23
78°
59°
24
76°
58°
25
75°
58°
26
76°
57°
27
77°
58°
28
79°
57°
29
78°
56°
30
76°
56°
1
77°
57°
2
78°
50°
3
77°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Decatur Township
Decatur Township's September 2026 forecast shows daily high temperatures ranging from 72° to 83°, with overnight lows between 46° and 66°. The average high for September is 77° with an average low of 57°. 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 Decatur Township. See also: October | November | December.
