S
M
T
W
T
F
S
30
79°
60°
31
81°
52°
1
77°
50°
2
73°
52°
3
72°
58°
4
76°
56°
5
80°
50°
6
74°
48°
7
71°
50°
8
71°
57°
9
72°
56°
10
72°
55°
11
71°
49°
12
69°
49°
13
70°
46°
14
68°
47°
15
68°
52°
16
67°
55°
17
73°
55°
18
76°
54°
19
76°
51°
20
71°
52°
21
74°
50°
22
70°
44°
23
66°
43°
24
65°
42°
25
65°
43°
26
64°
43°
27
73°
51°
28
64°
51°
29
74°
41°
30
Hist. Avg.
71°
46°
1
Hist. Avg.
71°
46°
2
Hist. Avg.
70°
46°
3
Hist. Avg.
70°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
September Weather in Waterloo Township
Waterloo Township's September 2026 forecast shows daily high temperatures ranging from 64° to 81°, with overnight lows between 41° and 60°. The average high for September is 72° with an average low of 50°. 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 Waterloo Township. See also: October | November | December.
