S
M
T
W
T
F
S
26
88°
64°
27
89°
66°
28
89°
65°
29
90°
64°
30
88°
68°
1
90°
70°
2
87°
68°
3
79°
62°
4
84°
61°
5
87°
64°
6
93°
66°
7
91°
68°
8
93°
69°
9
95°
70°
10
93°
72°
11
94°
73°
12
88°
72°
13
89°
70°
14
90°
70°
15
93°
62°
16
95°
73°
17
95°
71°
18
95°
71°
19
93°
71°
20
95°
70°
21
95°
74°
22
95°
74°
23
93°
71°
24
93°
73°
25
92°
74°
26
94°
73°
27
94°
74°
28
94°
75°
29
92°
75°
30
93°
74°
31
92°
75°
1
91°
72°
2
91°
73°
3
92°
73°
4
93°
72°
5
94°
73°
6
92°
73°
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 91° to 95°, with overnight lows between 70° and 75°. The average high for May is 93° with an average low of 73°. 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.
