S
M
T
W
T
F
S
26
91°
71°
27
92°
65°
28
89°
65°
29
90°
66°
30
93°
70°
31
92°
71°
1
92°
71°
2
93°
68°
3
91°
67°
4
89°
65°
5
90°
64°
6
89°
65°
7
90°
65°
8
90°
66°
9
91°
69°
10
90°
69°
11
90°
70°
12
91°
70°
13
93°
69°
14
95°
68°
15
95°
70°
16
94°
69°
17
92°
67°
18
93°
69°
19
94°
64°
20
93°
62°
21
89°
62°
22
89°
62°
23
90°
63°
24
94°
65°
25
93°
67°
26
93°
66°
27
94°
67°
28
93°
67°
29
88°
66°
30
90°
66°
31
89°
65°
1
91°
65°
2
92°
64°
3
91°
65°
4
87°
62°
5
85°
59°
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 85° to 95°, with overnight lows between 59° and 71°. The average high for August is 91° with an average low of 66°. 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.