S
M
T
W
T
F
S
26
64°
43°
27
77°
39°
28
75°
55°
29
63°
50°
30
57°
37°
1
52°
36°
2
52°
32°
3
63°
30°
4
72°
58°
5
70°
51°
6
60°
43°
7
57°
38°
8
64°
49°
9
64°
48°
10
66°
50°
11
59°
41°
12
60°
43°
13
67°
51°
14
65°
48°
15
66°
50°
16
69°
52°
17
72°
51°
18
75°
56°
19
73°
56°
20
77°
51°
21
74°
52°
22
69°
47°
23
66°
47°
24
68°
49°
25
68°
51°
26
69°
49°
27
69°
49°
28
70°
50°
29
70°
50°
30
71°
52°
31
77°
59°
1
72°
55°
2
73°
52°
3
74°
58°
4
75°
58°
5
78°
60°
6
81°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Austin
Austin's May 2026 forecast shows daily high temperatures ranging from 57° to 81°, with overnight lows between 38° and 62°. The average high for May is 69° with an average low of 51°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Austin. See also: June | July | August.