S
M
T
W
T
F
S
26
81°
67°
27
84°
72°
28
87°
69°
29
85°
71°
30
84°
69°
31
84°
72°
1
87°
72°
2
85°
73°
3
86°
71°
4
87°
71°
5
88°
70°
6
87°
69°
7
90°
68°
8
88°
69°
9
89°
70°
10
89°
69°
11
88°
67°
12
84°
69°
13
84°
70°
14
89°
69°
15
86°
64°
16
82°
63°
17
84°
68°
18
88°
66°
19
83°
65°
20
82°
65°
21
86°
68°
22
88°
67°
23
86°
64°
24
81°
63°
25
81°
63°
26
82°
61°
27
81°
62°
28
84°
65°
29
85°
66°
30
87°
68°
31
87°
68°
1
86°
67°
2
85°
67°
3
79°
64°
4
79°
61°
5
78°
59°
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 78° to 90°, with overnight lows between 59° and 73°. The average high for August is 85° with an average low of 67°. 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.