S
M
T
W
T
F
S
27
80°
52°
28
68°
58°
29
67°
54°
30
58°
48°
1
66°
44°
2
76°
49°
3
81°
46°
4
79°
49°
5
79°
54°
6
77°
49°
7
78°
47°
8
75°
48°
9
78°
48°
10
74°
49°
11
72°
40°
12
65°
42°
13
66°
35°
14
71°
40°
15
70°
41°
16
69°
40°
17
68°
37°
18
58°
31°
19
66°
33°
20
66°
33°
21
67°
36°
22
67°
38°
23
66°
39°
24
64°
34°
25
54°
27°
26
59°
32°
27
65°
36°
28
55°
33°
29
60°
36°
30
64°
36°
31
63°
35°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Castle Pines
Castle Pines's October 2026 forecast shows daily high temperatures ranging from 54° to 81°, with overnight lows between 27° and 54°. The average high for October is 68° with an average low of 40°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Castle Pines. See also: November | December | January.