S
M
T
W
T
F
S
26
94°
72°
27
94°
71°
28
93°
72°
29
92°
71°
30
92°
70°
31
91°
70°
1
88°
71°
2
90°
71°
3
88°
70°
4
92°
69°
5
91°
70°
6
85°
69°
7
86°
70°
8
84°
68°
9
85°
65°
10
85°
65°
11
86°
67°
12
87°
69°
13
90°
70°
14
89°
70°
15
92°
69°
16
92°
70°
17
93°
70°
18
93°
69°
19
92°
70°
20
93°
70°
21
85°
58°
22
83°
61°
23
85°
61°
24
84°
65°
25
88°
67°
26
89°
66°
27
91°
67°
28
92°
66°
29
90°
65°
30
91°
66°
31
90°
66°
1
90°
65°
2
91°
66°
3
91°
66°
4
90°
67°
5
90°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Prairie Grove
Prairie Grove's August 2026 forecast shows daily high temperatures ranging from 83° to 94°, with overnight lows between 58° and 72°. The average high for August is 89° with an average low of 68°. 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 Prairie Grove. See also: September | October | November.
