S
M
T
W
T
F
S
26
90°
73°
27
90°
73°
28
92°
72°
29
92°
74°
30
93°
73°
31
92°
73°
1
91°
72°
2
87°
73°
3
88°
70°
4
91°
71°
5
92°
73°
6
91°
72°
7
88°
70°
8
91°
72°
9
88°
70°
10
87°
69°
11
90°
68°
12
91°
69°
13
91°
72°
14
92°
70°
15
91°
72°
16
91°
70°
17
90°
68°
18
88°
71°
19
90°
71°
20
88°
70°
21
87°
70°
22
84°
69°
23
88°
67°
24
90°
66°
25
91°
70°
26
90°
70°
27
89°
68°
28
88°
67°
29
87°
66°
30
86°
68°
31
85°
69°
1
84°
68°
2
85°
65°
3
83°
64°
4
82°
63°
5
83°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Stone Mountain
Stone Mountain's August 2026 forecast shows daily high temperatures ranging from 82° to 93°, with overnight lows between 62° and 74°. The average high for August is 89° 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 Stone Mountain. See also: September | October | November.
