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°
40°
9
72°
37°
10
79°
38°
11
76°
46°
12
82°
37°
13
69°
46°
14
60°
44°
15
59°
41°
16
52°
40°
17
53°
37°
18
61°
26°
19
57°
32°
20
56°
36°
21
63°
38°
22
70°
34°
23
76°
37°
24
81°
48°
25
86°
51°
26
63°
48°
27
72°
51°
28
82°
54°
29
77°
48°
30
71°
43°
31
72°
44°
1
75°
51°
2
81°
54°
3
82°
51°
4
79°
51°
5
78°
52°
6
76°
45°
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 63° to 86°, with overnight lows between 43° and 54°. The average high for May is 77° with an average low of 49°. 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.
