S
M
T
W
T
F
S
26
85°
72°
27
89°
72°
28
90°
73°
29
88°
72°
30
90°
72°
31
90°
72°
1
89°
71°
2
90°
72°
3
90°
73°
4
92°
72°
5
90°
72°
6
86°
71°
7
88°
72°
8
89°
70°
9
84°
67°
10
83°
66°
11
83°
68°
12
84°
71°
13
84°
70°
14
85°
71°
15
88°
71°
16
86°
70°
17
89°
64°
18
83°
64°
19
84°
68°
20
88°
69°
21
89°
70°
22
88°
69°
23
89°
70°
24
88°
68°
25
88°
68°
26
81°
67°
27
82°
65°
28
81°
65°
29
81°
64°
30
82°
65°
31
84°
67°
1
86°
68°
2
87°
68°
3
87°
65°
4
86°
60°
5
80°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Chesapeake Beach
Chesapeake Beach's August 2026 forecast shows daily high temperatures ranging from 80° to 92°, with overnight lows between 60° and 73°. The average high for August is 86° with an average low of 69°. 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 Chesapeake Beach. See also: September | October | November.