S
M
T
W
T
F
S
26
96°
74°
27
97°
74°
28
97°
73°
29
96°
75°
30
97°
75°
31
96°
74°
1
97°
74°
2
98°
75°
3
98°
75°
4
97°
74°
5
98°
76°
6
99°
75°
7
98°
75°
8
98°
74°
9
97°
75°
10
98°
74°
11
98°
75°
12
97°
75°
13
98°
74°
14
97°
75°
15
98°
74°
16
98°
72°
17
93°
68°
18
93°
68°
19
94°
69°
20
91°
67°
21
90°
68°
22
91°
67°
23
90°
64°
24
89°
64°
25
89°
65°
26
90°
63°
27
88°
63°
28
89°
62°
29
90°
62°
30
92°
63°
31
93°
67°
1
93°
68°
2
92°
65°
3
94°
66°
4
94°
68°
5
93°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Poteau
Poteau's August 2026 forecast shows daily high temperatures ranging from 88° to 99°, with overnight lows between 62° and 76°. The average high for August is 95° 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 August weather will actually feel in Poteau. See also: September | October | November.