S
M
T
W
T
F
S
30
78°
60°
31
80°
61°
1
79°
59°
2
75°
56°
3
74°
57°
4
75°
58°
5
79°
59°
6
80°
59°
7
80°
58°
8
81°
60°
9
78°
58°
10
74°
57°
11
78°
59°
12
79°
58°
13
79°
58°
14
69°
46°
15
67°
47°
16
69°
53°
17
71°
52°
18
66°
46°
19
67°
49°
20
72°
50°
21
74°
53°
22
74°
53°
23
73°
43°
24
66°
44°
25
69°
50°
26
72°
53°
27
70°
49°
28
72°
42°
29
63°
42°
30
64°
44°
1
63°
50°
2
67°
50°
3
71°
49°
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 63° to 81°, with overnight lows between 42° and 61°. The average high for September is 73° with an average low of 53°. 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.
