S
M
T
W
T
F
S
26
60°
36°
27
65°
30°
28
59°
32°
29
56°
45°
30
55°
46°
1
65°
40°
2
59°
41°
3
56°
31°
4
72°
42°
5
79°
48°
6
71°
57°
7
66°
48°
8
63°
34°
9
60°
32°
10
74°
51°
11
63°
36°
12
65°
35°
13
67°
40°
14
63°
45°
15
57°
40°
16
79°
38°
17
89°
51°
18
86°
51°
19
97°
71°
20
95°
56°
21
69°
45°
22
67°
50°
23
56°
48°
24
56°
46°
25
61°
53°
26
67°
51°
27
72°
52°
28
70°
54°
29
70°
53°
30
74°
54°
31
79°
58°
1
76°
50°
2
66°
50°
3
67°
52°
4
67°
56°
5
69°
56°
6
74°
55°
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 56° to 97°, with overnight lows between 45° and 71°. The average high for May is 71° 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.
