S
M
T
W
T
F
S
27
83°
67°
28
85°
66°
29
81°
64°
30
86°
71°
1
76°
69°
2
75°
59°
3
77°
55°
4
82°
57°
5
79°
50°
6
83°
49°
7
89°
53°
8
88°
57°
9
88°
57°
10
88°
54°
11
89°
60°
12
89°
70°
13
92°
71°
14
73°
67°
15
72°
55°
16
57°
41°
17
61°
37°
18
67°
37°
19
70°
41°
20
74°
48°
21
75°
52°
22
80°
48°
23
79°
48°
24
80°
46°
25
79°
49°
26
77°
52°
27
78°
53°
28
79°
59°
29
83°
58°
30
72°
57°
31
64°
56°
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 64° to 72°, with overnight lows between 56° and 57°. The average high for October is 68° with an average low of 57°. 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.