S
M
T
W
T
F
S
31
74°
47°
1
78°
50°
2
79°
52°
3
83°
51°
4
68°
46°
5
74°
46°
6
69°
48°
7
69°
43°
8
69°
47°
9
75°
46°
10
78°
50°
11
78°
49°
12
80°
54°
13
80°
52°
14
82°
51°
15
82°
55°
16
82°
58°
17
82°
55°
18
88°
53°
19
78°
61°
20
77°
57°
21
78°
58°
22
76°
61°
23
79°
58°
24
73°
63°
25
76°
58°
26
79°
55°
27
83°
55°
28
78°
53°
29
79°
50°
30
80°
54°
1
71°
53°
2
79°
52°
3
85°
48°
4
87°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Tecumseh
Tecumseh's September 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Tecumseh. See also: October | November | December.
