S
M
T
W
T
F
S
27
64°
57°
28
70°
60°
29
75°
61°
30
77°
62°
1
84°
64°
2
86°
62°
3
71°
59°
4
63°
59°
5
72°
49°
6
65°
44°
7
71°
42°
8
78°
51°
9
76°
47°
10
74°
58°
11
66°
60°
12
72°
55°
13
79°
59°
14
74°
50°
15
64°
47°
16
65°
51°
17
65°
46°
18
60°
42°
19
62°
46°
20
66°
47°
21
66°
45°
22
63°
47°
23
62°
55°
24
57°
39°
25
58°
43°
26
64°
46°
27
66°
39°
28
56°
38°
29
55°
37°
30
56°
40°
31
61°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in New Castle
New Castle's October 2026 forecast shows daily high temperatures ranging from 55° to 79°, with overnight lows between 37° and 60°. The average high for October is 64° with an average low of 47°. 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 New Castle. See also: November | December | January.
