S
M
T
W
T
F
S
26
55°
37°
27
68°
34°
28
67°
34°
29
65°
48°
30
62°
47°
1
69°
41°
2
65°
45°
3
63°
43°
4
79°
43°
5
88°
54°
6
74°
57°
7
57°
48°
8
64°
51°
9
58°
50°
10
66°
51°
11
56°
46°
12
62°
43°
13
61°
48°
14
64°
46°
15
65°
48°
16
71°
52°
17
69°
52°
18
75°
55°
19
72°
55°
20
71°
52°
21
65°
49°
22
65°
50°
23
66°
49°
24
66°
51°
25
70°
56°
26
74°
57°
27
69°
55°
28
72°
54°
29
68°
51°
30
72°
58°
31
76°
59°
1
74°
59°
2
73°
58°
3
74°
58°
4
77°
60°
5
78°
60°
6
77°
61°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Island Beach State Park
Island Beach State Park's May 2026 forecast shows daily high temperatures ranging from 56° to 78°, with overnight lows between 43° and 61°. The average high for May is 69° with an average low of 53°. 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 Island Beach State Park. See also: June | July | August.
