S
M
T
W
T
F
S
31
75°
43°
1
79°
40°
2
84°
41°
3
83°
49°
4
88°
49°
5
92°
53°
6
96°
55°
7
89°
47°
8
81°
57°
9
89°
56°
10
87°
50°
11
76°
48°
12
71°
47°
13
81°
49°
14
80°
53°
15
78°
49°
16
79°
50°
17
83°
55°
18
82°
54°
19
85°
56°
20
85°
51°
21
78°
56°
22
86°
58°
23
83°
57°
24
86°
56°
25
79°
56°
26
86°
57°
27
86°
57°
28
87°
56°
29
85°
57°
30
86°
57°
1
88°
58°
2
89°
60°
3
90°
60°
4
89°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Casper
Casper's June 2026 forecast shows daily high temperatures ranging from 71° to 96°, with overnight lows between 47° and 60°. The average high for June is 84° 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 Casper. See also: July | August | September.