S
M
T
W
T
F
S
26
82°
62°
27
83°
64°
28
82°
64°
29
79°
63°
30
77°
64°
31
82°
64°
1
83°
63°
2
83°
62°
3
85°
63°
4
85°
63°
5
84°
62°
6
83°
61°
7
78°
62°
8
80°
58°
9
78°
57°
10
80°
56°
11
78°
61°
12
81°
62°
13
84°
61°
14
83°
55°
15
79°
54°
16
77°
54°
17
78°
59°
18
76°
54°
19
79°
54°
20
78°
55°
21
78°
54°
22
80°
58°
23
81°
55°
24
82°
53°
25
80°
53°
26
79°
56°
27
76°
54°
28
74°
56°
29
80°
60°
30
81°
56°
31
80°
50°
1
77°
49°
2
73°
51°
3
73°
50°
4
74°
50°
5
72°
49°
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 72° to 85°, with overnight lows between 49° and 64°. The average high for August is 79° 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 Dover. See also: September | October | November.