S
M
T
W
T
F
S
26
58°
42°
27
69°
45°
28
65°
51°
29
54°
36°
30
52°
32°
1
48°
30°
2
57°
28°
3
68°
45°
4
80°
43°
5
58°
40°
6
55°
31°
7
61°
29°
8
69°
29°
9
72°
44°
10
64°
31°
11
56°
35°
12
73°
34°
13
63°
36°
14
70°
33°
15
80°
47°
16
85°
59°
17
83°
56°
18
83°
67°
19
79°
53°
20
61°
45°
21
57°
42°
22
67°
49°
23
75°
50°
24
78°
54°
25
85°
51°
26
86°
55°
27
83°
50°
28
72°
44°
29
83°
55°
30
72°
50°
31
72°
49°
1
77°
51°
2
76°
53°
3
80°
57°
4
75°
57°
5
76°
58°
6
76°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Dover
Dover's May 2026 forecast shows daily high temperatures ranging from 72° to 83°, with overnight lows between 44° and 58°. The average high for May is 77° 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 Dover. See also: June | July | August.
