S
M
T
W
T
F
S
26
78°
63°
27
82°
65°
28
82°
68°
29
78°
61°
30
83°
58°
31
86°
62°
1
79°
69°
2
79°
66°
3
79°
59°
4
83°
54°
5
87°
64°
6
86°
64°
7
85°
70°
8
87°
68°
9
86°
64°
10
85°
66°
11
78°
66°
12
73°
64°
13
84°
62°
14
78°
68°
15
82°
70°
16
83°
68°
17
81°
59°
18
82°
62°
19
78°
62°
20
78°
55°
21
79°
57°
22
80°
58°
23
78°
56°
24
81°
59°
25
85°
61°
26
83°
62°
27
79°
59°
28
81°
58°
29
77°
56°
30
79°
59°
31
77°
57°
1
80°
61°
2
81°
60°
3
76°
57°
4
74°
53°
5
75°
55°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Delaware
Delaware's August 2026 forecast shows daily high temperatures ranging from 74° to 85°, with overnight lows between 53° and 70°. The average high for August is 80° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Delaware. See also: September | October | November.
