S
M
T
W
T
F
S
26
56°
20°
27
45°
23°
28
51°
28°
29
55°
29°
30
56°
28°
1
67°
36°
2
65°
33°
3
62°
36°
4
62°
31°
5
63°
35°
6
61°
31°
7
61°
34°
8
62°
37°
9
61°
36°
10
65°
37°
11
58°
41°
12
58°
36°
13
59°
35°
14
62°
43°
15
70°
44°
16
72°
46°
17
73°
45°
18
65°
42°
19
68°
46°
20
71°
47°
21
71°
49°
22
73°
47°
23
72°
47°
24
67°
45°
25
71°
48°
26
75°
50°
27
77°
51°
28
77°
50°
29
69°
49°
30
74°
51°
31
76°
52°
1
76°
52°
2
76°
50°
3
69°
51°
4
68°
51°
5
70°
52°
6
68°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Killdeer
Killdeer's May 2026 forecast shows daily high temperatures ranging from 45° to 77°, with overnight lows between 23° and 52°. The average high for May is 66° with an average low of 42°. 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 Killdeer. See also: June | July | August.