S
M
T
W
T
F
S
26
39°
21°
27
44°
25°
28
35°
20°
29
57°
27°
30
53°
24°
1
56°
32°
2
64°
38°
3
71°
39°
4
69°
40°
5
57°
29°
6
48°
20°
7
54°
34°
8
61°
40°
9
69°
50°
10
59°
39°
11
72°
40°
12
73°
38°
13
71°
39°
14
91°
37°
15
72°
42°
16
67°
37°
17
71°
37°
18
46°
32°
19
43°
23°
20
60°
36°
21
66°
39°
22
44°
35°
23
62°
41°
24
73°
41°
25
80°
52°
26
85°
51°
27
86°
57°
28
90°
57°
29
90°
56°
30
78°
52°
31
73°
50°
1
77°
51°
2
79°
52°
3
82°
57°
4
88°
58°
5
91°
57°
6
94°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Greybull
Greybull's May 2026 forecast shows daily high temperatures ranging from 73° to 94°, with overnight lows between 50° and 60°. The average high for May is 84° with an average low of 55°. 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 Greybull. See also: June | July | August.
