S
M
T
W
T
F
S
26
82°
62°
27
77°
60°
28
69°
57°
29
84°
62°
30
73°
59°
1
68°
56°
2
69°
53°
3
71°
45°
4
81°
50°
5
80°
61°
6
79°
65°
7
76°
54°
8
72°
51°
9
77°
56°
10
80°
61°
11
76°
49°
12
70°
47°
13
76°
58°
14
78°
58°
15
79°
56°
16
81°
59°
17
82°
58°
18
77°
60°
19
79°
60°
20
77°
61°
21
75°
56°
22
77°
54°
23
73°
53°
24
74°
55°
25
75°
56°
26
76°
55°
27
74°
54°
28
75°
56°
29
76°
57°
30
77°
60°
31
78°
63°
1
79°
64°
2
77°
63°
3
78°
63°
4
78°
60°
5
82°
64°
6
84°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in The Plains
The Plains's May 2026 forecast shows daily high temperatures ranging from 70° to 84°, with overnight lows between 47° and 65°. The average high for May is 77° with an average low of 58°. 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 The Plains. See also: June | July | August.