S
M
T
W
T
F
S
30
100°
76°
31
100°
74°
1
98°
74°
2
102°
75°
3
101°
74°
4
98°
73°
5
93°
72°
6
92°
71°
7
96°
72°
8
95°
71°
9
86°
63°
10
91°
69°
11
88°
67°
12
89°
67°
13
89°
68°
14
88°
68°
15
89°
67°
16
88°
67°
17
88°
66°
18
84°
67°
19
87°
67°
20
87°
66°
21
86°
67°
22
88°
66°
23
86°
65°
24
87°
66°
25
86°
64°
26
85°
63°
27
86°
64°
28
85°
64°
29
82°
63°
30
84°
64°
1
84°
64°
2
83°
62°
3
84°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Checotah
Checotah's September 2026 forecast shows daily high temperatures ranging from 82° to 102°, with overnight lows between 62° and 76°. The average high for September is 90° with an average low of 68°. 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 Checotah. See also: October | November | December.
