S
M
T
W
T
F
S
26
79°
51°
27
75°
50°
28
75°
51°
29
76°
51°
30
76°
52°
31
77°
55°
1
79°
55°
2
76°
53°
3
76°
53°
4
77°
51°
5
76°
51°
6
76°
50°
7
77°
57°
8
82°
55°
9
76°
50°
10
77°
51°
11
78°
52°
12
76°
51°
13
75°
51°
14
75°
53°
15
76°
54°
16
73°
50°
17
74°
49°
18
80°
50°
19
81°
53°
20
81°
57°
21
82°
55°
22
79°
55°
23
80°
52°
24
78°
48°
25
72°
49°
26
73°
54°
27
75°
52°
28
78°
48°
29
76°
56°
30
79°
56°
31
80°
48°
1
79°
47°
2
71°
45°
3
Hist. Avg.
74°
50°
4
Hist. Avg.
74°
50°
5
Hist. Avg.
74°
50°
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 71° to 82°, with overnight lows between 45° and 57°. The average high for August is 77° with an average low of 52°. 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.