S
M
T
W
T
F
S
30
80°
61°
31
79°
71°
1
85°
69°
2
72°
67°
3
88°
69°
4
87°
73°
5
81°
71°
6
79°
65°
7
81°
60°
8
83°
61°
9
87°
65°
10
88°
72°
11
83°
66°
12
80°
62°
13
84°
68°
14
76°
65°
15
73°
57°
16
83°
59°
17
84°
70°
18
84°
70°
19
73°
64°
20
70°
64°
21
76°
61°
22
69°
57°
23
70°
56°
24
66°
53°
25
72°
56°
26
66°
55°
27
64°
57°
28
64°
56°
29
73°
56°
30
77°
58°
1
81°
60°
2
78°
58°
3
73°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Union Township
Union Township's September 2026 forecast shows daily high temperatures ranging from 64° to 81°, with overnight lows between 53° and 60°. The average high for September is 71° 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 Union Township. See also: October | November | December.
