S
M
T
W
T
F
S
30
104°
72°
31
102°
67°
1
103°
75°
2
101°
73°
3
97°
73°
4
101°
74°
5
102°
71°
6
105°
72°
7
104°
76°
8
104°
76°
9
104°
74°
10
91°
68°
11
97°
72°
12
102°
74°
13
94°
68°
14
91°
67°
15
90°
65°
16
94°
67°
17
90°
66°
18
92°
65°
19
83°
59°
20
81°
65°
21
89°
65°
22
88°
65°
23
88°
64°
24
87°
64°
25
78°
62°
26
82°
63°
27
83°
62°
28
86°
63°
29
82°
62°
30
81°
54°
1
73°
49°
2
74°
49°
3
73°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Okmulgee
Okmulgee's September 2026 forecast shows daily high temperatures ranging from 73° to 105°, with overnight lows between 48° and 76°. The average high for September is 89° with an average low of 64°. 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 Okmulgee. See also: October | November | December.
