S
M
T
W
T
F
S
26
83°
56°
27
79°
54°
28
74°
55°
29
75°
57°
30
76°
58°
31
75°
55°
1
76°
56°
2
80°
56°
3
79°
55°
4
78°
56°
5
80°
56°
6
Hist. Avg.
79°
59°
7
Hist. Avg.
79°
59°
8
Hist. Avg.
79°
59°
9
Hist. Avg.
79°
59°
10
Hist. Avg.
79°
59°
11
Hist. Avg.
79°
59°
12
Hist. Avg.
78°
59°
13
Hist. Avg.
78°
59°
14
Hist. Avg.
78°
58°
15
Hist. Avg.
78°
58°
16
Hist. Avg.
78°
58°
17
Hist. Avg.
78°
58°
18
Hist. Avg.
78°
58°
19
Hist. Avg.
78°
58°
20
Hist. Avg.
78°
58°
21
Hist. Avg.
77°
57°
22
Hist. Avg.
77°
57°
23
Hist. Avg.
77°
57°
24
Hist. Avg.
77°
57°
25
Hist. Avg.
77°
57°
26
Hist. Avg.
76°
56°
27
Hist. Avg.
76°
56°
28
Hist. Avg.
76°
56°
29
Hist. Avg.
76°
56°
30
Hist. Avg.
76°
55°
31
Hist. Avg.
75°
55°
1
Hist. Avg.
75°
55°
2
Hist. Avg.
75°
54°
3
Hist. Avg.
74°
54°
4
Hist. Avg.
74°
54°
5
Hist. Avg.
74°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Custer
Custer's August 2026 forecast shows daily high temperatures ranging from 74° to 83°, with overnight lows between 54° and 58°. The average high for August is 78° 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 Custer. See also: September | October | November.
