S
M
T
W
T
F
S
27
75°
46°
28
75°
50°
29
77°
46°
30
78°
53°
1
87°
63°
2
75°
48°
3
69°
46°
4
76°
43°
5
69°
45°
6
67°
39°
7
80°
43°
8
75°
46°
9
76°
42°
10
67°
53°
11
64°
57°
12
80°
59°
13
88°
65°
14
84°
61°
15
69°
56°
16
72°
46°
17
56°
37°
18
64°
32°
19
69°
35°
20
71°
37°
21
70°
37°
22
70°
39°
23
70°
39°
24
70°
39°
25
69°
38°
26
75°
39°
27
73°
42°
28
76°
44°
29
77°
46°
30
68°
44°
31
67°
49°
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 67° to 77°, with overnight lows between 44° and 49°. The average high for October is 72° 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.