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
101°
77°
14
100°
75°
15
100°
73°
16
102°
77°
17
90°
75°
18
102°
71°
19
104°
76°
20
102°
77°
21
100°
73°
22
92°
70°
23
93°
69°
24
85°
77°
25
98°
73°
26
96°
74°
27
94°
68°
28
96°
64°
29
100°
71°
30
101°
73°
31
101°
73°
1
99°
76°
2
101°
74°
3
102°
75°
4
101°
72°
5
99°
74°
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 99° to 102°, with overnight lows between 71° and 76°. The average high for August is 101° with an average low of 74°. 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.