S
M
T
W
T
F
S
26
83°
70°
27
86°
71°
28
86°
71°
29
85°
70°
30
86°
70°
31
84°
66°
1
80°
66°
2
82°
67°
3
82°
70°
4
86°
71°
5
87°
70°
6
88°
70°
7
82°
69°
8
85°
69°
9
84°
68°
10
85°
62°
11
79°
64°
12
80°
65°
13
80°
63°
14
83°
63°
15
80°
64°
16
78°
68°
17
79°
68°
18
81°
66°
19
79°
64°
20
78°
63°
21
78°
67°
22
79°
68°
23
79°
65°
24
82°
67°
25
84°
62°
26
84°
60°
27
78°
61°
28
77°
62°
29
78°
64°
30
77°
65°
31
79°
66°
1
81°
60°
2
76°
60°
3
76°
61°
4
77°
59°
5
76°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Wilmington
Wilmington's August 2026 forecast shows daily high temperatures ranging from 76° to 88°, with overnight lows between 59° and 71°. The average high for August is 81° with an average low of 66°. 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 Wilmington. See also: September | October | November.