S
M
T
W
T
F
S
26
85°
69°
27
86°
71°
28
85°
71°
29
83°
70°
30
82°
70°
31
86°
71°
1
86°
70°
2
85°
71°
3
86°
69°
4
86°
70°
5
85°
68°
6
80°
69°
7
83°
64°
8
80°
65°
9
80°
64°
10
81°
64°
11
81°
69°
12
85°
69°
13
85°
68°
14
84°
63°
15
80°
63°
16
79°
68°
17
80°
69°
18
82°
63°
19
80°
63°
20
79°
64°
21
80°
63°
22
82°
62°
23
82°
62°
24
81°
63°
25
81°
63°
26
83°
67°
27
84°
68°
28
83°
67°
29
84°
68°
30
83°
66°
31
82°
60°
1
78°
59°
2
76°
60°
3
76°
60°
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 86°, with overnight lows between 59° and 71°. The average high for August is 82° 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.