S
M
T
W
T
F
S
26
88°
72°
27
89°
71°
28
88°
72°
29
89°
71°
30
90°
72°
31
91°
72°
1
89°
71°
2
86°
71°
3
83°
69°
4
83°
71°
5
84°
71°
6
83°
69°
7
83°
68°
8
84°
70°
9
85°
70°
10
87°
71°
11
88°
71°
12
86°
70°
13
85°
69°
14
87°
69°
15
83°
70°
16
83°
70°
17
87°
69°
18
88°
70°
19
87°
69°
20
87°
64°
21
85°
62°
22
81°
62°
23
81°
63°
24
82°
64°
25
83°
63°
26
82°
68°
27
86°
64°
28
86°
64°
29
82°
63°
30
80°
61°
31
81°
60°
1
78°
61°
2
79°
64°
3
79°
66°
4
80°
61°
5
83°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Colonial Beach
Colonial Beach's August 2026 forecast shows daily high temperatures ranging from 78° to 91°, with overnight lows between 60° and 72°. 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 Colonial Beach. See also: September | October | November.
