S
M
T
W
T
F
S
26
90°
65°
27
90°
66°
28
91°
67°
29
92°
66°
30
92°
68°
31
94°
68°
1
94°
70°
2
91°
72°
3
96°
72°
4
97°
70°
5
97°
65°
6
94°
64°
7
90°
63°
8
88°
65°
9
89°
64°
10
90°
64°
11
90°
66°
12
93°
65°
13
93°
68°
14
92°
65°
15
94°
67°
16
96°
65°
17
94°
62°
18
89°
62°
19
89°
65°
20
92°
69°
21
95°
66°
22
94°
68°
23
95°
69°
24
95°
69°
25
94°
68°
26
95°
68°
27
94°
69°
28
94°
68°
29
93°
68°
30
92°
66°
31
91°
65°
1
90°
64°
2
89°
63°
3
90°
62°
4
90°
65°
5
90°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Bartlesville
Bartlesville's August 2026 forecast shows daily high temperatures ranging from 88° to 97°, with overnight lows between 62° and 72°. The average high for August is 92° with an average low of 66°. 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 Bartlesville. See also: September | October | November.