S
M
T
W
T
F
S
31
73°
39°
1
84°
43°
2
90°
47°
3
71°
56°
4
69°
53°
5
61°
51°
6
61°
48°
7
69°
45°
8
60°
50°
9
62°
52°
10
69°
50°
11
78°
44°
12
79°
47°
13
89°
50°
14
94°
54°
15
94°
57°
16
74°
55°
17
74°
52°
18
84°
48°
19
83°
56°
20
73°
54°
21
81°
57°
22
91°
56°
23
93°
57°
24
84°
58°
25
65°
55°
26
72°
55°
27
65°
53°
28
67°
56°
29
67°
54°
30
65°
53°
1
67°
52°
2
70°
55°
3
73°
54°
4
78°
53°
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 65° to 78°, with overnight lows between 52° and 55°. The average high for June is 70° 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 Castle Rock. See also: July | August | September.
