S
M
T
W
T
F
S
26
62°
40°
27
73°
39°
28
60°
42°
29
59°
49°
30
56°
43°
1
60°
38°
2
53°
41°
3
59°
37°
4
72°
41°
5
81°
58°
6
68°
46°
7
60°
41°
8
53°
36°
9
58°
46°
10
65°
46°
11
61°
39°
12
64°
32°
13
67°
50°
14
53°
46°
15
63°
45°
16
80°
42°
17
85°
57°
18
91°
61°
19
91°
66°
20
86°
58°
21
63°
48°
22
65°
44°
23
56°
46°
24
61°
54°
25
74°
49°
26
79°
60°
27
79°
57°
28
71°
49°
29
72°
51°
30
72°
47°
31
69°
49°
1
71°
50°
2
72°
53°
3
76°
55°
4
76°
57°
5
77°
61°
6
78°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Wyoming
Wyoming's May 2026 forecast shows daily high temperatures ranging from 61° to 79°, with overnight lows between 47° and 61°. The average high for May is 73° with an average low of 53°. 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 Wyoming. See also: June | July | August.