S
M
T
W
T
F
S
31
73°
39°
1
84°
43°
2
90°
47°
3
69°
51°
4
69°
50°
5
62°
49°
6
61°
46°
7
71°
54°
8
63°
49°
9
68°
47°
10
68°
50°
11
70°
49°
12
77°
54°
13
80°
54°
14
79°
52°
15
80°
53°
16
73°
48°
17
71°
45°
18
73°
46°
19
68°
45°
20
75°
48°
21
76°
46°
22
68°
47°
23
67°
45°
24
68°
45°
25
76°
47°
26
78°
52°
27
79°
53°
28
78°
52°
29
78°
50°
30
77°
50°
1
74°
48°
2
72°
47°
3
77°
48°
4
76°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Castle Rock
Castle Rock's June 2026 forecast shows daily high temperatures ranging from 61° to 80°, with overnight lows between 45° and 54°. The average high for June is 73° with an average low of 49°. 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 Castle Rock. See also: July | August | September.
