S
M
T
W
T
F
S
30
83°
65°
31
82°
68°
1
88°
69°
2
92°
73°
3
85°
68°
4
77°
67°
5
77°
61°
6
77°
55°
7
77°
55°
8
79°
55°
9
77°
68°
10
75°
55°
11
76°
49°
12
84°
59°
13
72°
50°
14
69°
45°
15
76°
59°
16
70°
63°
17
64°
59°
18
72°
54°
19
61°
58°
20
67°
54°
21
62°
49°
22
63°
50°
23
65°
52°
24
65°
49°
25
68°
51°
26
69°
50°
27
68°
49°
28
70°
53°
29
69°
52°
30
72°
54°
1
69°
43°
2
66°
52°
3
62°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Thornapple Township
Thornapple Township's September 2026 forecast shows daily high temperatures ranging from 61° to 72°, with overnight lows between 43° and 58°. The average high for September is 67° with an average low of 51°. 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 Thornapple Township. See also: October | November | December.
