S
M
T
W
T
F
S
26
54°
37°
27
69°
38°
28
70°
46°
29
48°
39°
30
48°
35°
1
45°
37°
2
46°
34°
3
64°
35°
4
74°
46°
5
65°
45°
6
46°
39°
7
52°
36°
8
63°
36°
9
68°
40°
10
58°
34°
11
48°
34°
12
61°
30°
13
59°
43°
14
56°
36°
15
68°
36°
16
75°
50°
17
83°
54°
18
88°
64°
19
84°
44°
20
50°
39°
21
59°
41°
22
63°
51°
23
61°
51°
24
65°
50°
25
69°
55°
26
72°
54°
27
68°
53°
28
71°
53°
29
70°
53°
30
74°
57°
31
74°
57°
1
70°
62°
2
73°
55°
3
71°
54°
4
66°
53°
5
67°
54°
6
71°
56°
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 50° to 84°, with overnight lows between 39° and 62°. The average high for May is 68° with an average low of 52°. 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.