S
M
T
W
T
F
S
27
68°
51°
28
70°
49°
29
71°
52°
30
75°
55°
1
76°
56°
2
76°
55°
3
75°
55°
4
74°
54°
5
67°
50°
6
66°
48°
7
67°
47°
8
66°
49°
9
66°
47°
10
67°
48°
11
72°
51°
12
74°
54°
13
75°
54°
14
75°
53°
15
73°
53°
16
68°
52°
17
66°
53°
18
66°
53°
19
67°
52°
20
65°
53°
21
65°
52°
22
66°
48°
23
68°
50°
24
69°
50°
25
72°
48°
26
74°
51°
27
73°
50°
28
70°
49°
29
73°
49°
30
73°
48°
31
72°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Castroville
Castroville's October 2026 forecast shows daily high temperatures ranging from 65° to 76°, with overnight lows between 47° and 56°. The average high for October is 70° with an average low of 51°. 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 Castroville. See also: November | December | January.
