S
M
T
W
T
F
S
26
58°
39°
27
68°
42°
28
67°
46°
29
59°
48°
30
58°
43°
1
56°
39°
2
57°
39°
3
56°
40°
4
59°
46°
5
62°
47°
6
65°
48°
7
67°
45°
8
66°
46°
9
65°
50°
10
61°
46°
11
62°
44°
12
62°
49°
13
63°
48°
14
63°
45°
15
62°
45°
16
61°
46°
17
58°
45°
18
62°
45°
19
67°
52°
20
67°
48°
21
64°
47°
22
65°
46°
23
64°
47°
24
65°
49°
25
68°
56°
26
72°
51°
27
66°
49°
28
66°
49°
29
68°
55°
30
75°
57°
31
75°
55°
1
73°
56°
2
76°
59°
3
77°
60°
4
78°
59°
5
77°
53°
6
70°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Killingworth
Killingworth's May 2026 forecast shows daily high temperatures ranging from 56° to 78°, with overnight lows between 39° and 60°. The average high for May is 65° with an average low of 48°. 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 Killingworth. See also: June | July | August.