S
M
T
W
T
F
S
31
71°
51°
1
67°
52°
2
72°
52°
3
73°
47°
4
62°
46°
5
61°
48°
6
62°
50°
7
64°
53°
8
63°
52°
9
73°
52°
10
69°
49°
11
64°
45°
12
65°
48°
13
65°
52°
14
69°
52°
15
66°
54°
16
76°
55°
17
77°
56°
18
76°
55°
19
77°
49°
20
73°
51°
21
75°
55°
22
78°
56°
23
79°
57°
24
78°
58°
25
81°
59°
26
80°
59°
27
81°
58°
28
74°
53°
29
77°
58°
30
80°
59°
1
82°
59°
2
81°
58°
3
82°
58°
4
77°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Custer
Custer's June 2026 forecast shows daily high temperatures ranging from 61° to 82°, with overnight lows between 45° and 59°. The average high for June is 73° with an average low of 54°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Custer. See also: July | August | September.