S
M
T
W
T
F
S
26
90°
73°
27
91°
74°
28
93°
72°
29
88°
72°
30
88°
68°
31
90°
65°
1
87°
71°
2
90°
73°
3
86°
68°
4
86°
69°
5
88°
70°
6
87°
70°
7
86°
69°
8
91°
70°
9
90°
70°
10
90°
71°
11
93°
71°
12
92°
73°
13
97°
74°
14
98°
75°
15
97°
75°
16
97°
72°
17
97°
74°
18
96°
72°
19
95°
71°
20
95°
73°
21
91°
71°
22
92°
72°
23
89°
70°
24
90°
69°
25
89°
68°
26
89°
71°
27
90°
71°
28
90°
70°
29
89°
70°
30
89°
69°
31
85°
70°
1
83°
70°
2
84°
69°
3
84°
70°
4
86°
69°
5
87°
70°
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 83° to 98°, with overnight lows between 68° and 75°. The average high for August is 91° with an average low of 71°. 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.
