S
M
T
W
T
F
S
26
92°
72°
27
92°
72°
28
93°
73°
29
93°
73°
30
92°
72°
31
93°
74°
1
93°
73°
2
94°
74°
3
94°
74°
4
93°
74°
5
95°
75°
6
95°
75°
7
94°
74°
8
94°
73°
9
93°
73°
10
92°
72°
11
93°
73°
12
93°
73°
13
94°
74°
14
94°
73°
15
93°
73°
16
93°
72°
17
91°
66°
18
92°
68°
19
92°
67°
20
88°
66°
21
90°
70°
22
88°
69°
23
85°
65°
24
85°
63°
25
86°
63°
26
85°
62°
27
84°
62°
28
84°
61°
29
85°
62°
30
85°
64°
31
90°
67°
1
89°
65°
2
89°
65°
3
88°
67°
4
90°
67°
5
89°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Mountain Home
Mountain Home's August 2026 forecast shows daily high temperatures ranging from 84° to 95°, with overnight lows between 61° and 75°. 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 Mountain Home. See also: September | October | November.