S
M
T
W
T
F
S
30
80°
65°
31
76°
68°
1
90°
69°
2
92°
73°
3
87°
68°
4
77°
68°
5
78°
59°
6
76°
54°
7
77°
51°
8
82°
55°
9
76°
67°
10
78°
57°
11
76°
49°
12
84°
61°
13
75°
50°
14
69°
44°
15
76°
58°
16
69°
63°
17
67°
61°
18
71°
55°
19
61°
57°
20
68°
53°
21
64°
48°
22
61°
49°
23
67°
52°
24
69°
53°
25
70°
51°
26
71°
50°
27
71°
52°
28
70°
54°
29
72°
53°
30
72°
51°
1
73°
46°
2
66°
51°
3
62°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Okemos
Okemos's September 2026 forecast shows daily high temperatures ranging from 61° to 73°, with overnight lows between 46° and 57°. The average high for September is 68° with an average low of 52°. 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 Okemos. See also: October | November | December.