S
M
T
W
T
F
S
26
99°
66°
27
83°
66°
28
91°
64°
29
87°
60°
30
88°
63°
31
86°
56°
1
89°
56°
2
98°
60°
3
92°
51°
4
71°
47°
5
80°
52°
6
93°
57°
7
92°
60°
8
92°
64°
9
91°
62°
10
89°
61°
11
87°
60°
12
82°
54°
13
77°
54°
14
79°
53°
15
77°
55°
16
78°
57°
17
76°
53°
18
82°
53°
19
79°
56°
20
80°
56°
21
81°
55°
22
80°
54°
23
79°
54°
24
83°
56°
25
83°
51°
26
77°
52°
27
82°
54°
28
83°
56°
29
83°
55°
30
84°
56°
31
84°
56°
1
83°
55°
2
83°
56°
3
82°
55°
4
80°
55°
5
77°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Cheyenne
Cheyenne's August 2026 forecast shows daily high temperatures ranging from 76° to 93°, with overnight lows between 51° and 64°. The average high for August is 82° 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 August weather will actually feel in Cheyenne. See also: September | October | November.
