S
M
T
W
T
F
S
26
99°
77°
27
99°
75°
28
98°
71°
29
99°
78°
30
97°
77°
31
99°
80°
1
87°
70°
2
89°
68°
3
92°
66°
4
96°
71°
5
98°
75°
6
100°
75°
7
95°
73°
8
98°
71°
9
97°
72°
10
99°
74°
11
98°
72°
12
99°
76°
13
103°
77°
14
102°
75°
15
101°
76°
16
104°
73°
17
98°
72°
18
103°
73°
19
100°
76°
20
103°
75°
21
102°
73°
22
102°
75°
23
100°
71°
24
101°
70°
25
96°
70°
26
91°
67°
27
95°
73°
28
92°
70°
29
93°
70°
30
93°
71°
31
94°
71°
1
94°
70°
2
93°
72°
3
95°
72°
4
94°
71°
5
93°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Tahlequah
Tahlequah's August 2026 forecast shows daily high temperatures ranging from 91° to 104°, with overnight lows between 67° and 77°. The average high for August is 98° with an average low of 72°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Tahlequah. See also: September | October | November.