S
M
T
W
T
F
S
27
71°
53°
28
71°
53°
29
69°
52°
30
66°
52°
1
66°
53°
2
69°
51°
3
66°
51°
4
68°
50°
5
64°
50°
6
63°
51°
7
65°
50°
8
65°
46°
9
55°
45°
10
59°
44°
11
58°
45°
12
63°
49°
13
65°
48°
14
64°
47°
15
63°
48°
16
64°
46°
17
53°
42°
18
51°
41°
19
54°
42°
20
58°
46°
21
60°
39°
22
50°
38°
23
48°
38°
24
53°
44°
25
54°
44°
26
58°
36°
27
51°
35°
28
53°
39°
29
57°
44°
30
59°
43°
31
58°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Delaware
Delaware's October 2026 forecast shows daily high temperatures ranging from 48° to 71°, with overnight lows between 35° and 53°. The average high for October is 60° with an average low of 46°. 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 Delaware. See also: November | December | January.