S
M
T
W
T
F
S
26
89°
67°
27
90°
68°
28
93°
69°
29
93°
68°
30
90°
71°
31
92°
71°
1
90°
70°
2
90°
72°
3
91°
71°
4
90°
68°
5
94°
72°
6
95°
67°
7
89°
68°
8
90°
68°
9
90°
69°
10
91°
69°
11
92°
68°
12
91°
69°
13
90°
70°
14
91°
69°
15
89°
70°
16
89°
68°
17
90°
70°
18
89°
71°
19
89°
71°
20
90°
70°
21
89°
71°
22
90°
71°
23
93°
70°
24
94°
70°
25
94°
71°
26
93°
70°
27
93°
70°
28
92°
71°
29
92°
70°
30
92°
68°
31
91°
68°
1
90°
67°
2
91°
66°
3
90°
67°
4
90°
69°
5
91°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Walnut Grove
Walnut Grove's August 2026 forecast shows daily high temperatures ranging from 89° to 95°, with overnight lows between 66° and 72°. The average high for August is 91° with an average low of 69°. 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 Walnut Grove. See also: September | October | November.
