S
M
T
W
T
F
S
26
88°
73°
27
91°
75°
28
93°
77°
29
91°
70°
30
88°
70°
31
90°
68°
1
88°
70°
2
88°
73°
3
90°
70°
4
86°
72°
5
88°
70°
6
86°
68°
7
88°
70°
8
90°
72°
9
90°
72°
10
91°
72°
11
91°
70°
12
94°
71°
13
95°
74°
14
98°
76°
15
95°
75°
16
97°
75°
17
97°
72°
18
92°
72°
19
91°
73°
20
93°
70°
21
92°
72°
22
91°
71°
23
91°
70°
24
85°
69°
25
86°
67°
26
88°
70°
27
88°
70°
28
85°
70°
29
83°
69°
30
87°
70°
31
87°
69°
1
84°
69°
2
86°
68°
3
86°
69°
4
87°
69°
5
87°
68°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Simpsonville
Simpsonville's August 2026 forecast shows daily high temperatures ranging from 83° to 98°, with overnight lows between 67° and 76°. The average high for August is 90° 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 Simpsonville. See also: September | October | November.
