S
M
T
W
T
F
S
30
101°
80°
31
101°
79°
1
102°
77°
2
101°
78°
3
102°
77°
4
103°
76°
5
100°
78°
6
102°
77°
7
100°
78°
8
101°
77°
9
100°
75°
10
86°
64°
11
90°
69°
12
89°
69°
13
90°
68°
14
90°
70°
15
89°
69°
16
89°
68°
17
88°
69°
18
87°
68°
19
88°
68°
20
88°
68°
21
87°
68°
22
88°
67°
23
87°
66°
24
88°
67°
25
87°
66°
26
86°
65°
27
86°
65°
28
84°
64°
29
83°
65°
30
84°
65°
1
84°
64°
2
83°
64°
3
84°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Tulsa
Tulsa's September 2026 forecast shows daily high temperatures ranging from 83° to 103°, with overnight lows between 63° and 80°. The average high for September is 91° with an average low of 70°. 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 Tulsa. See also: October | November | December.
