S
M
T
W
T
F
S
26
66°
39°
27
72°
45°
28
68°
37°
29
67°
32°
30
52°
44°
1
67°
37°
2
75°
32°
3
88°
36°
4
87°
37°
5
55°
37°
6
44°
32°
7
78°
31°
8
78°
46°
9
89°
47°
10
67°
47°
11
87°
40°
12
88°
50°
13
86°
45°
14
98°
55°
15
93°
50°
16
94°
55°
17
85°
48°
18
67°
47°
19
69°
38°
20
64°
49°
21
60°
52°
22
70°
46°
23
74°
50°
24
81°
53°
25
83°
55°
26
80°
56°
27
76°
55°
28
80°
54°
29
79°
54°
30
84°
57°
31
87°
56°
1
84°
59°
2
81°
54°
3
81°
58°
4
85°
57°
5
77°
58°
6
80°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Greeley County
Greeley County's May 2026 forecast shows daily high temperatures ranging from 60° to 87°, with overnight lows between 46° and 59°. The average high for May is 78° 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 Greeley County. See also: June | July | August.
