S
M
T
W
T
F
S
26
93°
77°
27
95°
74°
28
96°
74°
29
96°
75°
30
97°
76°
31
95°
74°
1
94°
75°
2
92°
71°
3
87°
67°
4
93°
67°
5
94°
69°
6
95°
72°
7
96°
69°
8
91°
72°
9
91°
72°
10
91°
73°
11
89°
72°
12
91°
73°
13
91°
72°
14
90°
71°
15
92°
72°
16
90°
70°
17
92°
71°
18
90°
71°
19
89°
70°
20
98°
71°
21
89°
73°
22
89°
73°
23
87°
72°
24
89°
73°
25
90°
73°
26
90°
72°
27
89°
73°
28
90°
73°
29
89°
71°
30
90°
72°
31
90°
72°
1
88°
71°
2
90°
72°
3
91°
72°
4
85°
71°
5
86°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Rock Hill
Rock Hill's August 2026 forecast shows daily high temperatures ranging from 85° to 98°, with overnight lows between 69° and 73°. The average high for August is 90° with an average low of 72°. 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 Rock Hill. See also: September | October | November.