S
M
T
W
T
F
S
30
91°
66°
31
93°
71°
1
94°
71°
2
96°
71°
3
97°
73°
4
97°
73°
5
91°
68°
6
81°
63°
7
84°
60°
8
87°
65°
9
92°
73°
10
82°
68°
11
82°
65°
12
83°
69°
13
90°
67°
14
76°
52°
15
90°
68°
16
91°
68°
17
93°
68°
18
84°
64°
19
85°
61°
20
85°
62°
21
81°
60°
22
77°
56°
23
70°
51°
24
73°
50°
25
76°
51°
26
74°
52°
27
78°
52°
28
77°
54°
29
76°
53°
30
77°
54°
1
76°
53°
2
76°
52°
3
75°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Mount Orab
Mount Orab's September 2026 forecast shows daily high temperatures ranging from 70° to 93°, with overnight lows between 50° and 68°. The average high for September is 80° 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 Mount Orab. See also: October | November | December.