S
M
T
W
T
F
S
31
82°
73°
1
90°
73°
2
91°
72°
3
94°
70°
4
95°
66°
5
94°
76°
6
91°
73°
7
79°
70°
8
85°
64°
9
87°
60°
10
91°
60°
11
92°
69°
12
92°
68°
13
92°
66°
14
92°
66°
15
92°
69°
16
93°
66°
17
93°
68°
18
92°
68°
19
92°
68°
20
91°
68°
21
92°
69°
22
92°
71°
23
94°
73°
24
92°
74°
25
90°
67°
26
89°
62°
27
89°
59°
28
89°
58°
29
91°
58°
30
93°
63°
1
93°
63°
2
93°
65°
3
91°
67°
4
90°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Oklahoma
Oklahoma's September 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for September is ° with an average low of °. 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 Oklahoma. See also: October | November | December.
