S
M
T
W
T
F
S
30
80°
61°
31
82°
57°
1
82°
57°
2
82°
63°
3
81°
55°
4
88°
69°
5
88°
67°
6
83°
62°
7
74°
55°
8
80°
59°
9
83°
61°
10
87°
62°
11
90°
63°
12
84°
59°
13
81°
57°
14
80°
63°
15
83°
62°
16
82°
62°
17
84°
60°
18
81°
59°
19
88°
57°
20
70°
46°
21
79°
55°
22
70°
52°
23
70°
45°
24
72°
52°
25
70°
47°
26
73°
47°
27
74°
50°
28
68°
43°
29
66°
41°
30
64°
41°
1
64°
42°
2
65°
40°
3
66°
41°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Plain City
Plain City's September 2026 forecast shows daily high temperatures ranging from 64° to 90°, with overnight lows between 40° and 63°. The average high for September is 76° 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 Plain City. See also: October | November | December.
