S
M
T
W
T
F
S
30
83°
64°
31
83°
64°
1
82°
63°
2
81°
64°
3
81°
63°
4
82°
63°
5
83°
62°
6
84°
63°
7
84°
64°
8
85°
64°
9
80°
62°
10
78°
61°
11
82°
63°
12
83°
63°
13
83°
61°
14
73°
50°
15
71°
55°
16
73°
57°
17
72°
53°
18
71°
51°
19
72°
52°
20
77°
53°
21
77°
56°
22
76°
56°
23
78°
46°
24
71°
46°
25
70°
54°
26
74°
55°
27
77°
45°
28
75°
44°
29
67°
46°
30
68°
50°
1
69°
52°
2
72°
53°
3
76°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Ottawa Township
Ottawa Township's September 2026 forecast shows daily high temperatures ranging from 67° to 85°, with overnight lows between 44° and 64°. The average high for September is 77° 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 Ottawa Township. See also: October | November | December.
