S
M
T
W
T
F
S
26
48°
38°
27
60°
38°
28
49°
34°
29
65°
34°
30
61°
40°
1
65°
33°
2
74°
33°
3
78°
43°
4
82°
39°
5
49°
41°
6
53°
40°
7
77°
37°
8
78°
49°
9
81°
41°
10
73°
47°
11
88°
50°
12
83°
52°
13
85°
58°
14
91°
51°
15
92°
58°
16
86°
60°
17
83°
53°
18
64°
42°
19
67°
44°
20
77°
51°
21
74°
50°
22
81°
54°
23
83°
53°
24
87°
58°
25
90°
59°
26
91°
61°
27
76°
57°
28
73°
56°
29
74°
53°
30
76°
58°
31
75°
59°
1
75°
58°
2
76°
60°
3
85°
61°
4
87°
63°
5
88°
63°
6
86°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in McCook
McCook's May 2026 forecast shows daily high temperatures ranging from 64° to 92°, with overnight lows between 42° and 63°. The average high for May is 81° with an average low of 56°. 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 McCook. See also: June | July | August.
