S
M
T
W
T
F
S
30
80°
61°
31
81°
61°
1
80°
58°
2
75°
57°
3
74°
59°
4
76°
59°
5
80°
60°
6
81°
60°
7
81°
59°
8
82°
60°
9
81°
59°
10
74°
58°
11
79°
59°
12
80°
59°
13
79°
58°
14
70°
46°
15
68°
48°
16
70°
53°
17
72°
52°
18
78°
55°
19
78°
49°
20
77°
45°
21
68°
44°
22
67°
45°
23
65°
50°
24
67°
52°
25
67°
52°
26
74°
53°
27
74°
53°
28
73°
52°
29
75°
53°
30
75°
51°
1
74°
44°
2
71°
40°
3
59°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Shiawassee Township
Shiawassee Township's September 2026 forecast shows daily high temperatures ranging from 59° to 82°, with overnight lows between 38° and 61°. The average high for September is 74° with an average low of 53°. 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 Shiawassee Township. See also: October | November | December.
