S
M
T
W
T
F
S
26
58°
42°
27
56°
41°
28
58°
43°
29
59°
43°
30
60°
46°
1
59°
46°
2
54°
39°
3
53°
40°
4
54°
39°
5
54°
40°
6
55°
40°
7
54°
41°
8
54°
40°
9
55°
44°
10
56°
46°
11
56°
41°
12
60°
47°
13
62°
47°
14
63°
46°
15
62°
48°
16
61°
47°
17
63°
48°
18
63°
48°
19
61°
47°
20
60°
46°
21
59°
48°
22
58°
44°
23
59°
47°
24
60°
49°
25
60°
49°
26
61°
48°
27
62°
50°
28
62°
49°
29
61°
47°
30
61°
50°
31
62°
47°
1
63°
49°
2
63°
50°
3
62°
45°
4
62°
44°
5
63°
45°
6
64°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Derby
Derby's May 2026 forecast shows daily high temperatures ranging from 53° to 64°, with overnight lows between 39° and 50°. The average high for May is 59° with an average low of 45°. 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 Derby. See also: June | July | August.