S
M
T
W
T
F
S
27
75°
59°
28
77°
59°
29
77°
51°
30
71°
54°
1
70°
59°
2
76°
57°
3
76°
50°
4
75°
49°
5
67°
48°
6
66°
49°
7
68°
51°
8
73°
54°
9
72°
54°
10
72°
51°
11
72°
52°
12
Hist. Avg.
68°
49°
13
Hist. Avg.
68°
48°
14
Hist. Avg.
68°
48°
15
Hist. Avg.
67°
48°
16
Hist. Avg.
67°
47°
17
Hist. Avg.
66°
47°
18
Hist. Avg.
66°
46°
19
Hist. Avg.
66°
46°
20
Hist. Avg.
65°
46°
21
Hist. Avg.
65°
45°
22
Hist. Avg.
65°
45°
23
Hist. Avg.
64°
44°
24
Hist. Avg.
64°
44°
25
Hist. Avg.
64°
44°
26
Hist. Avg.
63°
44°
27
Hist. Avg.
63°
43°
28
Hist. Avg.
63°
43°
29
Hist. Avg.
62°
42°
30
Hist. Avg.
62°
42°
31
Hist. Avg.
62°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in New Castle
New Castle's October 2026 forecast shows daily high temperatures ranging from 66° to 77°, with overnight lows between 48° and 59°. The average high for October is 72° with an average low of 53°. 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.
