S
M
T
W
T
F
S
26
70°
50°
27
73°
50°
28
68°
50°
29
64°
46°
30
55°
41°
1
63°
36°
2
50°
36°
3
57°
28°
4
68°
43°
5
68°
54°
6
62°
48°
7
53°
37°
8
61°
47°
9
68°
51°
10
71°
51°
11
56°
43°
12
56°
42°
13
58°
48°
14
65°
55°
15
70°
56°
16
70°
57°
17
68°
54°
18
67°
44°
19
72°
54°
20
74°
56°
21
69°
51°
22
68°
47°
23
65°
46°
24
66°
48°
25
68°
51°
26
69°
49°
27
67°
48°
28
68°
49°
29
69°
50°
30
70°
54°
31
73°
57°
1
73°
58°
2
70°
56°
3
71°
54°
4
71°
54°
5
75°
56°
6
78°
59°
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 53° to 78°, with overnight lows between 37° and 59°. The average high for May is 68° 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 Round Top. See also: June | July | August.
