S
M
T
W
T
F
S
31
76°
59°
1
77°
59°
2
80°
58°
3
77°
59°
4
85°
60°
5
86°
61°
6
86°
61°
7
87°
62°
8
84°
62°
9
81°
61°
10
78°
62°
11
84°
63°
12
87°
63°
13
89°
64°
14
89°
65°
15
90°
65°
16
90°
63°
17
81°
65°
18
88°
65°
19
90°
66°
20
91°
66°
21
90°
64°
22
93°
65°
23
94°
57°
24
91°
56°
25
84°
59°
26
86°
62°
27
93°
56°
28
85°
56°
29
83°
61°
30
84°
66°
1
86°
66°
2
94°
58°
3
89°
56°
4
84°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in McCook
McCook's June 2026 forecast shows daily high temperatures ranging from 76° to 94°, with overnight lows between 55° and 66°. The average high for June is 86° with an average low of 61°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in McCook. See also: July | August | September.