S
M
T
W
T
F
S
26
90°
70°
27
91°
71°
28
91°
71°
29
90°
70°
30
91°
72°
31
90°
72°
1
91°
71°
2
92°
72°
3
92°
73°
4
93°
72°
5
93°
73°
6
92°
73°
7
93°
72°
8
91°
71°
9
90°
71°
10
90°
70°
11
91°
71°
12
91°
72°
13
92°
72°
14
92°
71°
15
91°
71°
16
90°
68°
17
89°
66°
18
90°
67°
19
90°
64°
20
85°
66°
21
89°
68°
22
86°
67°
23
83°
62°
24
82°
61°
25
82°
61°
26
83°
60°
27
82°
59°
28
82°
58°
29
83°
59°
30
86°
64°
31
88°
66°
1
87°
65°
2
87°
65°
3
86°
64°
4
87°
65°
5
87°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mountain Grove
Mountain Grove's August 2026 forecast shows daily high temperatures ranging from 82° to 93°, with overnight lows between 58° and 73°. 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 Mountain Grove. See also: September | October | November.
