S
M
T
W
T
F
S
26
86°
69°
27
91°
67°
28
80°
69°
29
69°
58°
30
63°
58°
1
65°
54°
2
76°
51°
3
82°
54°
4
81°
58°
5
87°
61°
6
61°
53°
7
73°
51°
8
78°
59°
9
86°
68°
10
85°
62°
11
78°
57°
12
82°
60°
13
87°
67°
14
85°
68°
15
86°
69°
16
87°
70°
17
85°
69°
18
83°
69°
19
81°
67°
20
84°
71°
21
87°
72°
22
81°
65°
23
79°
68°
24
80°
67°
25
80°
69°
26
82°
70°
27
80°
70°
28
81°
69°
29
82°
71°
30
83°
71°
31
84°
70°
1
85°
71°
2
84°
72°
3
82°
72°
4
83°
71°
5
84°
72°
6
83°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Rockwall
Rockwall's May 2026 forecast shows daily high temperatures ranging from 78° to 87°, with overnight lows between 57° and 72°. The average high for May is 83° with an average low of 69°. 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 Rockwall. See also: June | July | August.
