S
M
T
W
T
F
S
27
80°
62°
28
75°
60°
29
78°
62°
30
71°
67°
1
67°
47°
2
67°
46°
3
69°
52°
4
71°
45°
5
68°
51°
6
74°
52°
7
77°
49°
8
76°
52°
9
74°
51°
10
73°
48°
11
69°
45°
12
68°
44°
13
69°
47°
14
68°
40°
15
69°
47°
16
72°
46°
17
72°
45°
18
68°
39°
19
66°
38°
20
58°
34°
21
58°
35°
22
64°
44°
23
69°
45°
24
68°
44°
25
67°
39°
26
56°
36°
27
59°
42°
28
66°
39°
29
59°
36°
30
61°
41°
31
65°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Tecumseh
Tecumseh's October 2026 forecast shows daily high temperatures ranging from 56° to 77°, with overnight lows between 34° and 52°. The average high for October is 67° with an average low of 44°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Tecumseh. See also: November | December | January.