S
M
T
W
T
F
S
26
86°
57°
27
82°
52°
28
81°
64°
29
81°
62°
30
82°
56°
1
80°
60°
2
68°
50°
3
74°
51°
4
75°
56°
5
78°
60°
6
80°
59°
7
85°
60°
8
83°
57°
9
79°
55°
10
80°
58°
11
80°
57°
12
84°
62°
13
86°
63°
14
87°
64°
15
86°
58°
16
85°
58°
17
79°
57°
18
81°
58°
19
84°
61°
20
87°
63°
21
88°
65°
22
89°
64°
23
89°
65°
24
88°
66°
25
88°
65°
26
89°
67°
27
89°
67°
28
80°
65°
29
82°
66°
30
83°
67°
31
83°
68°
1
84°
68°
2
85°
69°
3
84°
69°
4
85°
68°
5
85°
69°
6
86°
68°
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 68° to 89°, with overnight lows between 50° and 69°. The average high for May is 83° with an average low of 62°. 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.
