S
M
T
W
T
F
S
26
50°
27°
27
53°
26°
28
56°
36°
29
62°
36°
30
65°
31°
1
72°
31°
2
74°
37°
3
77°
39°
4
68°
41°
5
63°
38°
6
69°
31°
7
73°
45°
8
71°
46°
9
73°
47°
10
79°
46°
11
75°
44°
12
82°
50°
13
74°
46°
14
74°
44°
15
72°
45°
16
66°
42°
17
62°
40°
18
66°
45°
19
69°
45°
20
67°
44°
21
72°
41°
22
65°
41°
23
68°
41°
24
74°
43°
25
76°
46°
26
75°
47°
27
70°
42°
28
74°
44°
29
71°
44°
30
74°
46°
31
77°
48°
1
78°
48°
2
79°
47°
3
69°
41°
4
67°
39°
5
72°
44°
6
75°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Plains
Plains's May 2026 forecast shows daily high temperatures ranging from 62° to 82°, with overnight lows between 39° and 50°. The average high for May is 72° with an average low of 44°. 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 Plains. See also: June | July | August.
