S
M
T
W
T
F
S
26
69°
49°
27
61°
55°
28
55°
40°
29
54°
41°
30
51°
40°
1
53°
32°
2
64°
47°
3
69°
47°
4
70°
38°
5
55°
35°
6
51°
33°
7
54°
36°
8
68°
44°
9
63°
42°
10
64°
44°
11
63°
46°
12
67°
47°
13
66°
46°
14
57°
37°
15
61°
45°
16
62°
47°
17
61°
51°
18
66°
52°
19
72°
53°
20
72°
54°
21
70°
51°
22
62°
45°
23
62°
45°
24
63°
46°
25
62°
49°
26
63°
51°
27
66°
51°
28
65°
48°
29
66°
52°
30
73°
51°
31
66°
51°
1
67°
58°
2
72°
54°
3
67°
54°
4
68°
53°
5
69°
51°
6
69°
51°
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 51° to 73°, with overnight lows between 32° and 58°. The average high for May is 65° with an average low of 47°. 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.