S
M
T
W
T
F
S
26
63°
46°
27
70°
48°
28
61°
48°
29
59°
48°
30
66°
52°
1
75°
50°
2
N/A
3
68°
51°
4
65°
49°
5
62°
46°
6
58°
43°
7
59°
43°
8
60°
46°
9
62°
47°
10
60°
46°
11
59°
47°
12
61°
47°
13
60°
45°
14
61°
46°
15
62°
47°
16
59°
46°
17
60°
43°
18
61°
41°
19
60°
45°
20
60°
42°
21
59°
41°
22
60°
41°
23
61°
43°
24
62°
47°
25
63°
48°
26
63°
48°
27
64°
46°
28
62°
44°
29
62°
43°
30
63°
45°
31
68°
48°
1
68°
47°
2
68°
50°
3
69°
47°
4
64°
48°
5
66°
49°
6
68°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Wilmington
Wilmington's May 2026 forecast shows daily high temperatures ranging from 58° to 69°, with overnight lows between 41° and 51°. The average high for May is 62° 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 May weather will actually feel in Wilmington. See also: June | July | August.