S
M
T
W
T
F
S
27
72°
52°
28
72°
55°
29
75°
52°
30
73°
57°
1
88°
70°
2
72°
57°
3
68°
52°
4
72°
54°
5
63°
47°
6
66°
53°
7
71°
53°
8
70°
53°
9
69°
56°
10
68°
56°
11
69°
58°
12
71°
57°
13
63°
51°
14
61°
50°
15
63°
51°
16
60°
50°
17
58°
47°
18
67°
52°
19
58°
47°
20
59°
46°
21
56°
49°
22
55°
44°
23
59°
48°
24
58°
46°
25
53°
45°
26
53°
44°
27
54°
42°
28
52°
44°
29
58°
49°
30
63°
50°
31
62°
50°
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 52° to 72°, with overnight lows between 42° and 58°. The average high for October is 62° with an average low of 50°. 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.
