S
M
T
W
T
F
S
29
62°
34°
30
71°
57°
31
77°
60°
1
64°
40°
2
80°
41°
3
78°
64°
4
80°
54°
5
48°
33°
6
58°
31°
7
43°
28°
8
62°
26°
9
77°
49°
10
72°
47°
11
60°
39°
12
81°
44°
13
81°
66°
14
83°
64°
15
83°
63°
16
77°
59°
17
80°
51°
18
75°
46°
19
55°
37°
20
50°
31°
21
N/A
22
76°
53°
23
80°
54°
24
79°
59°
25
69°
46°
26
72°
50°
27
76°
56°
28
66°
46°
29
67°
45°
30
59°
43°
1
57°
42°
2
57°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Delaware
Delaware's April 2026 forecast shows daily high temperatures ranging from 57° to 80°, with overnight lows between 40° and 59°. The average high for April is 69° with an average low of 49°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Delaware. See also: May | June | July.