S
M
T
W
T
F
S
26
86°
70°
27
87°
63°
28
86°
63°
29
87°
65°
30
88°
67°
31
90°
67°
1
91°
64°
2
87°
64°
3
87°
65°
4
85°
63°
5
86°
64°
6
87°
65°
7
86°
65°
8
86°
66°
9
87°
69°
10
87°
69°
11
88°
64°
12
87°
66°
13
92°
69°
14
92°
62°
15
87°
62°
16
86°
64°
17
89°
65°
18
91°
63°
19
86°
64°
20
85°
62°
21
86°
63°
22
86°
64°
23
85°
62°
24
84°
66°
25
85°
67°
26
85°
67°
27
90°
66°
28
91°
67°
29
91°
64°
30
90°
60°
31
84°
60°
1
85°
63°
2
88°
65°
3
88°
65°
4
87°
64°
5
88°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Austin
Austin's August 2026 forecast shows daily high temperatures ranging from 84° to 92°, with overnight lows between 60° and 70°. The average high for August is 87° with an average low of 65°. 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 Austin. See also: September | October | November.