S
M
T
W
T
F
S
27
75°
61°
28
76°
60°
29
77°
60°
30
76°
59°
1
76°
51°
2
71°
48°
3
62°
46°
4
61°
47°
5
63°
48°
6
63°
44°
7
62°
45°
8
58°
52°
9
62°
55°
10
63°
53°
11
70°
45°
12
67°
43°
13
57°
42°
14
57°
42°
15
58°
43°
16
58°
45°
17
63°
48°
18
66°
51°
19
66°
53°
20
67°
50°
21
66°
53°
22
66°
53°
23
68°
52°
24
67°
53°
25
67°
49°
26
66°
40°
27
65°
39°
28
54°
46°
29
58°
48°
30
55°
42°
31
59°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Castalia
Castalia's October 2026 forecast shows daily high temperatures ranging from 54° to 77°, with overnight lows between 38° and 61°. The average high for October is 65° 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 October weather will actually feel in Castalia. See also: November | December | January.
