S
M
T
W
T
F
S
26
70°
60°
27
71°
62°
28
73°
61°
29
71°
62°
30
72°
61°
31
69°
61°
1
70°
60°
2
69°
60°
3
70°
61°
4
71°
61°
5
72°
62°
6
74°
62°
7
75°
61°
8
77°
62°
9
76°
62°
10
77°
63°
11
77°
62°
12
76°
63°
13
76°
63°
14
78°
53°
15
69°
56°
16
69°
55°
17
71°
57°
18
76°
55°
19
74°
52°
20
68°
51°
21
68°
54°
22
69°
57°
23
67°
51°
24
68°
50°
25
66°
55°
26
66°
56°
27
73°
49°
28
68°
50°
29
67°
50°
30
66°
51°
31
65°
52°
1
66°
50°
2
66°
55°
3
68°
51°
4
67°
49°
5
67°
51°
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 65° to 78°, with overnight lows between 49° and 63°. The average high for August is 71° with an average low of 57°. 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.
