S
M
T
W
T
F
S
26
94°
70°
27
94°
70°
28
93°
69°
29
94°
71°
30
95°
71°
31
95°
70°
1
94°
71°
2
94°
70°
3
90°
69°
4
92°
70°
5
94°
70°
6
92°
69°
7
89°
69°
8
93°
68°
9
92°
69°
10
91°
69°
11
93°
65°
12
95°
64°
13
88°
67°
14
93°
68°
15
95°
65°
16
95°
62°
17
91°
57°
18
84°
55°
19
82°
56°
20
83°
56°
21
83°
57°
22
84°
57°
23
84°
62°
24
90°
60°
25
91°
60°
26
87°
57°
27
83°
58°
28
84°
62°
29
90°
63°
30
92°
63°
31
93°
54°
1
90°
58°
2
80°
63°
3
90°
61°
4
89°
56°
5
90°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in McCook
McCook's August 2026 forecast shows daily high temperatures ranging from 80° to 95°, with overnight lows between 53° and 71°. The average high for August is 90° with an average low of 64°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in McCook. See also: September | October | November.
