S
M
T
W
T
F
S
26
98°
76°
27
98°
76°
28
97°
75°
29
98°
76°
30
98°
76°
31
97°
75°
1
98°
76°
2
97°
74°
3
97°
70°
4
96°
72°
5
99°
72°
6
97°
74°
7
100°
76°
8
101°
75°
9
99°
74°
10
99°
74°
11
98°
73°
12
99°
71°
13
95°
71°
14
94°
72°
15
95°
74°
16
96°
74°
17
98°
73°
18
98°
73°
19
97°
72°
20
98°
73°
21
98°
73°
22
97°
72°
23
98°
71°
24
97°
70°
25
97°
71°
26
96°
70°
27
95°
71°
28
92°
68°
29
92°
69°
30
94°
70°
31
94°
71°
1
93°
69°
2
91°
69°
3
92°
70°
4
93°
69°
5
95°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Round Rock
Round Rock's August 2026 forecast shows daily high temperatures ranging from 91° to 101°, with overnight lows between 68° and 76°. The average high for August is 96° 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 Round Rock. See also: September | October | November.
