S
M
T
W
T
F
S
26
85°
71°
27
84°
71°
28
85°
70°
29
84°
71°
30
84°
70°
31
85°
66°
1
83°
66°
2
83°
70°
3
84°
71°
4
84°
71°
5
85°
69°
6
85°
71°
7
86°
71°
8
83°
70°
9
85°
69°
10
89°
70°
11
84°
70°
12
84°
71°
13
86°
68°
14
85°
70°
15
87°
69°
16
88°
70°
17
88°
69°
18
87°
70°
19
87°
65°
20
83°
65°
21
82°
64°
22
83°
64°
23
83°
65°
24
84°
64°
25
83°
64°
26
83°
65°
27
84°
64°
28
84°
64°
29
86°
65°
30
86°
64°
31
85°
67°
1
85°
68°
2
86°
64°
3
82°
63°
4
81°
62°
5
82°
63°
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 81° to 89°, with overnight lows between 62° and 71°. The average high for August is 85° with an average low of 67°. 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.
