S
M
T
W
T
F
S
30
100°
73°
31
99°
75°
1
99°
75°
2
98°
75°
3
98°
72°
4
98°
71°
5
100°
72°
6
100°
73°
7
102°
73°
8
99°
80°
9
98°
76°
10
85°
73°
11
91°
71°
12
92°
72°
13
98°
75°
14
98°
76°
15
99°
73°
16
99°
72°
17
102°
71°
18
99°
67°
19
94°
65°
20
86°
62°
21
82°
59°
22
85°
60°
23
88°
59°
24
89°
60°
25
82°
57°
26
88°
64°
27
87°
65°
28
86°
64°
29
86°
63°
30
85°
63°
1
86°
62°
2
85°
63°
3
85°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Tahlequah
Tahlequah's September 2026 forecast shows daily high temperatures ranging from 82° to 102°, with overnight lows between 57° and 76°. The average high for September is 90° with an average low of 65°. 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 Tahlequah. See also: October | November | December.
