S
M
T
W
T
F
S
26
93°
63°
27
88°
61°
28
85°
61°
29
86°
59°
30
79°
57°
31
78°
53°
1
87°
52°
2
93°
64°
3
85°
49°
4
64°
42°
5
78°
42°
6
88°
52°
7
78°
55°
8
92°
55°
9
83°
51°
10
91°
54°
11
86°
58°
12
73°
54°
13
65°
55°
14
78°
57°
15
68°
53°
16
75°
49°
17
79°
51°
18
76°
53°
19
79°
52°
20
85°
53°
21
84°
57°
22
76°
57°
23
83°
59°
24
82°
57°
25
78°
56°
26
80°
58°
27
80°
62°
28
88°
64°
29
85°
60°
30
79°
54°
31
76°
56°
1
79°
53°
2
78°
56°
3
80°
58°
4
81°
56°
5
80°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Custer State Park
Custer State Park's August 2026 forecast shows daily high temperatures ranging from 76° to 88°, with overnight lows between 53° and 64°. The average high for August is 80° with an average low of 57°. 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 Custer State Park. See also: September | October | November.
