S
M
T
W
T
F
S
30
79°
59°
31
83°
62°
1
84°
62°
2
84°
61°
3
85°
55°
4
83°
53°
5
77°
54°
6
77°
59°
7
80°
59°
8
83°
60°
9
82°
58°
10
78°
59°
11
82°
58°
12
82°
59°
13
81°
59°
14
80°
58°
15
82°
59°
16
82°
55°
17
80°
57°
18
79°
52°
19
79°
50°
20
73°
48°
21
71°
47°
22
71°
54°
23
72°
51°
24
75°
47°
25
70°
46°
26
69°
46°
27
72°
47°
28
75°
52°
29
74°
51°
30
75°
50°
1
69°
51°
2
69°
44°
3
Hist. Avg.
70°
45°
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 69° to 85°, with overnight lows between 44° and 62°. The average high for September is 78° with an average low of 54°. 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.
