S
M
T
W
T
F
S
26
84°
66°
27
87°
69°
28
80°
63°
29
75°
59°
30
78°
58°
31
83°
62°
1
84°
63°
2
82°
60°
3
84°
61°
4
88°
63°
5
88°
65°
6
84°
61°
7
85°
60°
8
84°
63°
9
85°
64°
10
86°
64°
11
82°
63°
12
83°
64°
13
84°
64°
14
80°
63°
15
80°
60°
16
82°
63°
17
83°
64°
18
81°
63°
19
81°
63°
20
82°
62°
21
81°
63°
22
79°
62°
23
86°
63°
24
86°
57°
25
78°
56°
26
83°
64°
27
86°
64°
28
86°
63°
29
85°
63°
30
84°
59°
31
76°
55°
1
76°
54°
2
75°
53°
3
76°
56°
4
83°
61°
5
82°
62°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Dover
Dover's August 2026 forecast shows daily high temperatures ranging from 75° to 88°, with overnight lows between 53° and 69°. The average high for August is 82° with an average low of 62°. 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 Dover. See also: September | October | November.