S
M
T
W
T
F
S
26
97°
74°
27
98°
76°
28
98°
77°
29
98°
77°
30
100°
77°
31
100°
76°
1
94°
77°
2
100°
75°
3
102°
72°
4
101°
79°
5
101°
78°
6
101°
79°
7
101°
78°
8
100°
75°
9
100°
74°
10
98°
77°
11
99°
77°
12
98°
75°
13
99°
76°
14
98°
76°
15
97°
74°
16
97°
73°
17
98°
74°
18
99°
74°
19
101°
75°
20
98°
72°
21
99°
74°
22
99°
74°
23
98°
73°
24
98°
75°
25
97°
75°
26
98°
74°
27
98°
74°
28
97°
73°
29
97°
74°
30
98°
75°
31
98°
74°
1
97°
73°
2
96°
74°
3
97°
74°
4
97°
73°
5
96°
73°
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 96° to 101°, with overnight lows between 72° and 77°. The average high for August is 98° with an average low of 74°. 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.