S
M
T
W
T
F
S
30
82°
66°
31
85°
70°
1
91°
75°
2
93°
73°
3
93°
72°
4
84°
69°
5
80°
65°
6
77°
58°
7
78°
55°
8
85°
58°
9
88°
66°
10
81°
62°
11
79°
56°
12
78°
63°
13
82°
57°
14
71°
49°
15
87°
56°
16
81°
68°
17
83°
61°
18
78°
57°
19
79°
63°
20
70°
60°
21
75°
58°
22
72°
58°
23
75°
57°
24
70°
53°
25
72°
54°
26
73°
52°
27
72°
51°
28
73°
48°
29
74°
54°
30
73°
55°
1
74°
54°
2
74°
53°
3
72°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Ottoville
Ottoville's September 2026 forecast shows daily high temperatures ranging from 70° to 83°, with overnight lows between 48° and 68°. The average high for September is 74° with an average low of 56°. 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 Ottoville. See also: October | November | December.
