S
M
T
W
T
F
S
26
57°
43°
27
73°
43°
28
59°
52°
29
61°
54°
30
70°
46°
1
70°
41°
2
61°
46°
3
66°
39°
4
79°
46°
5
86°
59°
6
72°
55°
7
72°
54°
8
72°
45°
9
70°
55°
10
81°
52°
11
66°
52°
12
73°
45°
13
75°
55°
14
61°
52°
15
72°
52°
16
86°
52°
17
90°
63°
18
100°
66°
19
99°
73°
20
93°
70°
21
68°
54°
22
63°
52°
23
N/A
24
65°
59°
25
74°
62°
26
74°
62°
27
76°
63°
28
80°
54°
29
77°
51°
30
73°
50°
31
74°
52°
1
77°
53°
2
75°
57°
3
76°
56°
4
75°
55°
5
79°
56°
6
73°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Dover
Dover's May 2026 forecast shows daily high temperatures ranging from 65° to 80°, with overnight lows between 50° and 63°. The average high for May is 75° with an average low of 56°. 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.
