S
M
T
W
T
F
S
26
82°
43°
27
75°
45°
28
68°
41°
29
69°
33°
30
67°
47°
1
60°
44°
2
75°
43°
3
86°
44°
4
89°
50°
5
66°
47°
6
49°
36°
7
78°
34°
8
83°
43°
9
90°
47°
10
69°
46°
11
82°
40°
12
95°
54°
13
91°
52°
14
100°
66°
15
94°
53°
16
101°
55°
17
97°
65°
18
96°
50°
19
69°
43°
20
73°
42°
21
79°
53°
22
73°
58°
23
80°
55°
24
88°
51°
25
90°
59°
26
84°
55°
27
72°
61°
28
79°
61°
29
87°
60°
30
95°
64°
31
93°
56°
1
96°
62°
2
86°
62°
3
85°
62°
4
90°
62°
5
93°
63°
6
82°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Guymon
Guymon's May 2026 forecast shows daily high temperatures ranging from 82° to 82°, with overnight lows between 60° and 60°. The average high for May is 82° with an average low of 60°. 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 Guymon. See also: June | July | August.
