S
M
T
W
T
F
S
26
105°
72°
27
100°
68°
28
98°
63°
29
101°
66°
30
88°
63°
31
87°
60°
1
100°
58°
2
104°
69°
3
82°
50°
4
76°
43°
5
91°
45°
6
98°
54°
7
86°
57°
8
97°
59°
9
90°
62°
10
93°
63°
11
92°
62°
12
78°
59°
13
71°
61°
14
90°
64°
15
81°
61°
16
85°
56°
17
87°
56°
18
85°
56°
19
85°
55°
20
92°
57°
21
90°
61°
22
83°
58°
23
84°
65°
24
94°
61°
25
86°
58°
26
85°
52°
27
89°
62°
28
92°
63°
29
92°
61°
30
91°
56°
31
87°
62°
1
89°
59°
2
92°
56°
3
87°
55°
4
78°
50°
5
73°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in East Custer Ut
East Custer Ut's August 2026 forecast shows daily high temperatures ranging from 73° to 92°, with overnight lows between 48° and 63°. The average high for August is 87° 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 East Custer Ut. See also: September | October | November.