S
M
T
W
T
F
S
30
100°
60°
31
100°
71°
1
101°
72°
2
102°
81°
3
101°
74°
4
102°
75°
5
106°
75°
6
105°
73°
7
97°
70°
8
103°
66°
9
100°
79°
10
97°
73°
11
89°
71°
12
96°
70°
13
97°
72°
14
98°
72°
15
98°
76°
16
100°
79°
17
101°
76°
18
100°
72°
19
97°
72°
20
98°
69°
21
92°
71°
22
83°
65°
23
82°
59°
24
72°
54°
25
84°
56°
26
82°
57°
27
84°
57°
28
83°
55°
29
88°
66°
30
90°
70°
1
86°
65°
2
79°
62°
3
80°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in West Sullivan Township
West Sullivan Township's September 2026 forecast shows daily high temperatures ranging from 79° to 90°, with overnight lows between 55° and 70°. The average high for September is 84° with an average low of 61°. 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 West Sullivan Township. See also: October | November | December.
