S
M
T
W
T
F
S
31
65°
42°
1
64°
41°
2
66°
48°
3
72°
52°
4
68°
51°
5
75°
47°
6
84°
55°
7
86°
61°
8
68°
47°
9
78°
53°
10
70°
47°
11
60°
41°
12
75°
39°
13
56°
36°
14
58°
33°
15
70°
34°
16
80°
47°
17
67°
46°
18
69°
43°
19
66°
43°
20
60°
42°
21
67°
49°
22
66°
48°
23
60°
49°
24
60°
45°
25
55°
50°
26
79°
50°
27
82°
59°
28
75°
48°
29
70°
54°
30
78°
49°
1
80°
51°
2
82°
52°
3
78°
50°
4
78°
50°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Keystone
Keystone's June 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for June is ° with an average low of °. 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 Keystone. See also: July | August | September.
