S
M
T
W
T
F
S
30
81°
62°
31
76°
62°
1
77°
61°
2
78°
54°
3
72°
52°
4
72°
55°
5
75°
59°
6
78°
60°
7
80°
60°
8
81°
59°
9
78°
57°
10
76°
59°
11
71°
51°
12
71°
52°
13
71°
49°
14
70°
47°
15
69°
46°
16
68°
44°
17
69°
47°
18
68°
44°
19
67°
42°
20
66°
43°
21
67°
43°
22
67°
46°
23
71°
50°
24
74°
53°
25
76°
54°
26
75°
53°
27
70°
45°
28
74°
52°
29
66°
40°
30
64°
51°
1
65°
50°
2
73°
39°
3
72°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in East Lansing
East Lansing's September 2026 forecast shows daily high temperatures ranging from 64° to 81°, with overnight lows between 39° and 62°. The average high for September is 72° 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 East Lansing. See also: October | November | December.