S
M
T
W
T
F
S
31
91°
68°
1
92°
70°
2
86°
68°
3
83°
67°
4
86°
66°
5
87°
72°
6
75°
69°
7
78°
71°
8
89°
75°
9
90°
72°
10
92°
75°
11
91°
72°
12
89°
71°
13
88°
67°
14
85°
64°
15
84°
61°
16
81°
62°
17
84°
66°
18
89°
68°
19
88°
67°
20
84°
69°
21
83°
71°
22
85°
71°
23
87°
72°
24
89°
72°
25
91°
73°
26
91°
72°
27
88°
72°
28
86°
71°
29
86°
72°
30
87°
73°
1
89°
73°
2
93°
72°
3
93°
73°
4
91°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Delaware
Delaware's June 2026 forecast shows daily high temperatures ranging from 75° to 93°, with overnight lows between 61° and 75°. The average high for June is 87° with an average low of 70°. 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 Delaware. See also: July | August | September.