S
M
T
W
T
F
S
26
49°
41°
27
66°
36°
28
64°
36°
29
68°
51°
30
70°
50°
1
68°
45°
2
61°
45°
3
60°
43°
4
76°
44°
5
84°
60°
6
74°
62°
7
66°
47°
8
69°
47°
9
74°
53°
10
84°
51°
11
63°
43°
12
69°
45°
13
76°
51°
14
65°
54°
15
70°
49°
16
83°
48°
17
87°
65°
18
96°
61°
19
95°
69°
20
96°
72°
21
74°
57°
22
61°
55°
23
58°
56°
24
65°
60°
25
66°
62°
26
66°
62°
27
73°
65°
28
80°
61°
29
74°
57°
30
73°
54°
31
71°
59°
1
76°
60°
2
79°
62°
3
78°
61°
4
76°
63°
5
80°
62°
6
75°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cape Henlopen State Park
Cape Henlopen State Park's May 2026 forecast shows daily high temperatures ranging from 58° to 80°, with overnight lows between 54° and 65°. The average high for May is 73° with an average low of 60°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Cape Henlopen State Park. See also: June | July | August.
