S
M
T
W
T
F
S
26
69°
59°
27
71°
57°
28
73°
58°
29
74°
59°
30
74°
60°
31
73°
59°
1
72°
62°
2
76°
60°
3
76°
61°
4
75°
58°
5
76°
59°
6
76°
61°
7
75°
61°
8
76°
60°
9
72°
59°
10
71°
54°
11
72°
55°
12
74°
58°
13
73°
59°
14
70°
56°
15
70°
58°
16
75°
60°
17
75°
61°
18
74°
61°
19
74°
58°
20
72°
60°
21
71°
60°
22
74°
57°
23
71°
58°
24
72°
59°
25
70°
59°
26
71°
58°
27
71°
55°
28
72°
58°
29
69°
59°
30
69°
60°
31
72°
60°
1
73°
59°
2
73°
58°
3
74°
58°
4
72°
57°
5
72°
56°
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 69° to 76°, with overnight lows between 54° and 62°. The average high for August is 73° with an average low of 59°. 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.