S
M
T
W
T
F
S
26
86°
73°
27
89°
75°
28
87°
76°
29
81°
61°
30
66°
59°
1
61°
51°
2
77°
47°
3
80°
50°
4
84°
62°
5
86°
71°
6
76°
60°
7
67°
57°
8
80°
59°
9
92°
71°
10
89°
63°
11
81°
63°
12
84°
59°
13
89°
60°
14
90°
64°
15
89°
71°
16
87°
73°
17
85°
77°
18
89°
75°
19
84°
68°
20
82°
65°
21
81°
67°
22
79°
66°
23
81°
68°
24
85°
70°
25
84°
69°
26
85°
71°
27
87°
71°
28
89°
67°
29
90°
70°
30
87°
70°
31
84°
70°
1
84°
69°
2
85°
70°
3
87°
71°
4
88°
71°
5
84°
70°
6
86°
71°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Round Rock-Georgetown
Round Rock-Georgetown's May 2026 forecast shows daily high temperatures ranging from 79° to 90°, with overnight lows between 65° and 77°. The average high for May is 85° with an average low of 70°. 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 Round Rock-Georgetown. See also: June | July | August.
