S
M
T
W
T
F
S
26
71°
51°
27
72°
51°
28
78°
44°
29
82°
53°
30
86°
55°
1
88°
59°
2
90°
56°
3
87°
60°
4
72°
55°
5
73°
53°
6
85°
50°
7
95°
59°
8
99°
65°
9
100°
62°
10
103°
65°
11
104°
69°
12
104°
68°
13
94°
67°
14
94°
63°
15
98°
66°
16
89°
68°
17
87°
63°
18
76°
58°
19
83°
50°
20
88°
57°
21
93°
64°
22
96°
67°
23
96°
66°
24
94°
63°
25
94°
62°
26
87°
56°
27
80°
52°
28
78°
54°
29
84°
59°
30
90°
63°
31
93°
66°
1
96°
67°
2
98°
66°
3
99°
66°
4
97°
67°
5
97°
66°
6
93°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Grandview
Grandview's May 2026 forecast shows daily high temperatures ranging from 78° to 99°, with overnight lows between 52° and 67°. The average high for May is 91° with an average low of 62°. 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 Grandview. See also: June | July | August.