S
M
T
W
T
F
S
31
77°
44°
1
77°
54°
2
75°
51°
3
82°
50°
4
88°
52°
5
89°
69°
6
88°
70°
7
83°
65°
8
70°
61°
9
74°
64°
10
85°
69°
11
86°
70°
12
90°
71°
13
87°
69°
14
87°
71°
15
84°
70°
16
82°
70°
17
82°
68°
18
84°
66°
19
85°
70°
20
84°
69°
21
86°
68°
22
85°
64°
23
80°
64°
24
81°
70°
25
84°
72°
26
87°
72°
27
87°
67°
28
82°
66°
29
83°
67°
30
81°
66°
1
83°
66°
2
82°
67°
3
85°
70°
4
89°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Dewey Beach
Dewey Beach's June 2026 forecast shows daily high temperatures ranging from 70° to 90°, with overnight lows between 61° and 72°. The average high for June is 84° with an average low of 68°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Dewey Beach. See also: July | August | September.
