S
M
T
W
T
F
S
26
93°
77°
27
92°
77°
28
92°
76°
29
91°
77°
30
89°
77°
31
89°
76°
1
90°
77°
2
89°
77°
3
90°
76°
4
91°
76°
5
90°
77°
6
90°
76°
7
91°
74°
8
92°
74°
9
91°
76°
10
92°
75°
11
93°
76°
12
92°
75°
13
93°
75°
14
93°
76°
15
92°
75°
16
92°
75°
17
91°
74°
18
92°
75°
19
92°
75°
20
91°
74°
21
88°
74°
22
87°
75°
23
88°
75°
24
92°
76°
25
93°
75°
26
92°
75°
27
91°
74°
28
92°
74°
29
90°
73°
30
88°
72°
31
87°
74°
1
88°
71°
2
88°
70°
3
89°
69°
4
87°
70°
5
87°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Grayton Beach
Grayton Beach's August 2026 forecast shows daily high temperatures ranging from 87° to 93°, with overnight lows between 69° and 77°. The average high for August is 90° with an average low of 75°. 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 Grayton Beach. See also: September | October | November.