S
M
T
W
T
F
S
30
76°
67°
31
85°
69°
1
90°
72°
2
96°
72°
3
86°
67°
4
82°
64°
5
77°
58°
6
81°
61°
7
81°
59°
8
77°
60°
9
78°
58°
10
78°
58°
11
78°
55°
12
77°
54°
13
75°
57°
14
76°
54°
15
80°
60°
16
81°
58°
17
80°
59°
18
75°
58°
19
80°
59°
20
81°
60°
21
81°
60°
22
80°
59°
23
81°
59°
24
80°
58°
25
79°
57°
26
78°
56°
27
79°
57°
28
78°
56°
29
77°
55°
30
75°
54°
1
74°
54°
2
75°
55°
3
77°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Sumpter Township
Sumpter Township's September 2026 forecast shows daily high temperatures ranging from 74° to 96°, with overnight lows between 54° and 72°. The average high for September is 79° with an average low of 59°. 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 Sumpter Township. See also: October | November | December.
