S
M
T
W
T
F
S
30
78°
70°
31
90°
72°
1
94°
71°
2
95°
71°
3
95°
74°
4
96°
73°
5
88°
71°
6
82°
65°
7
82°
57°
8
88°
63°
9
79°
66°
10
80°
58°
11
82°
57°
12
82°
59°
13
68°
50°
14
71°
50°
15
80°
65°
16
68°
63°
17
82°
63°
18
75°
67°
19
80°
62°
20
69°
56°
21
62°
54°
22
63°
47°
23
67°
49°
24
67°
53°
25
68°
49°
26
70°
48°
27
72°
53°
28
71°
50°
29
70°
48°
30
69°
45°
1
73°
51°
2
69°
51°
3
69°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in De Witt Township
De Witt Township's September 2026 forecast shows daily high temperatures ranging from 62° to 82°, with overnight lows between 45° and 67°. The average high for September is 70° 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 De Witt Township. See also: October | November | December.
