S
M
T
W
T
F
S
26
89°
78°
27
87°
77°
28
88°
77°
29
88°
79°
30
89°
78°
31
88°
79°
1
89°
79°
2
88°
78°
3
88°
79°
4
89°
79°
5
89°
78°
6
88°
77°
7
89°
78°
8
88°
77°
9
88°
79°
10
89°
79°
11
90°
80°
12
90°
80°
13
91°
79°
14
90°
80°
15
90°
79°
16
91°
79°
17
91°
78°
18
90°
79°
19
90°
77°
20
87°
78°
21
91°
76°
22
91°
76°
23
91°
76°
24
90°
77°
25
91°
78°
26
90°
77°
27
89°
76°
28
88°
78°
29
88°
77°
30
89°
77°
31
89°
78°
1
90°
78°
2
90°
77°
3
89°
78°
4
90°
77°
5
90°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Highland Beach
Highland Beach's August 2026 forecast shows daily high temperatures ranging from 87° to 91°, with overnight lows between 76° and 80°. The average high for August is 89° with an average low of 78°. 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 Highland Beach. See also: September | October | November.
