S
M
T
W
T
F
S
26
87°
73°
27
89°
76°
28
92°
76°
29
85°
64°
30
74°
63°
1
66°
54°
2
75°
50°
3
80°
51°
4
83°
58°
5
86°
69°
6
84°
64°
7
74°
59°
8
80°
63°
9
90°
70°
10
89°
66°
11
80°
65°
12
84°
63°
13
89°
61°
14
90°
63°
15
90°
69°
16
89°
69°
17
89°
77°
18
91°
78°
19
90°
66°
20
83°
67°
21
82°
67°
22
89°
67°
23
78°
68°
24
88°
67°
25
88°
68°
26
89°
64°
27
76°
65°
28
89°
68°
29
92°
71°
30
92°
72°
31
93°
71°
1
94°
73°
2
95°
70°
3
92°
69°
4
91°
70°
5
90°
71°
6
89°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Round Top
Round Top's May 2026 forecast shows daily high temperatures ranging from 76° to 95°, with overnight lows between 65° and 73°. The average high for May is 90° 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 Top. See also: June | July | August.
