S
M
T
W
T
F
S
26
79°
50°
27
83°
52°
28
79°
59°
29
68°
55°
30
63°
41°
1
63°
38°
2
60°
37°
3
65°
33°
4
80°
51°
5
75°
59°
6
64°
50°
7
64°
41°
8
72°
37°
9
76°
53°
10
77°
50°
11
73°
47°
12
77°
43°
13
78°
50°
14
67°
44°
15
77°
40°
16
84°
63°
17
88°
60°
18
90°
66°
19
89°
71°
20
77°
66°
21
68°
60°
22
77°
60°
23
77°
67°
24
74°
64°
25
74°
65°
26
76°
67°
27
79°
67°
28
82°
65°
29
76°
63°
30
76°
59°
31
77°
58°
1
78°
60°
2
78°
60°
3
76°
62°
4
79°
60°
5
80°
62°
6
83°
63°
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 74° to 83°, with overnight lows between 58° and 67°. The average high for May is 78° with an average low of 63°. 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.
