S
M
T
W
T
F
S
26
94°
78°
27
93°
76°
28
91°
79°
29
92°
78°
30
92°
79°
31
91°
79°
1
92°
78°
2
90°
79°
3
88°
79°
4
88°
78°
5
90°
79°
6
91°
79°
7
90°
78°
8
90°
78°
9
89°
79°
10
90°
79°
11
89°
78°
12
89°
79°
13
90°
79°
14
88°
77°
15
86°
77°
16
87°
78°
17
88°
79°
18
87°
78°
19
87°
78°
20
88°
79°
21
88°
78°
22
89°
78°
23
89°
79°
24
91°
75°
25
90°
76°
26
90°
76°
27
89°
75°
28
88°
76°
29
89°
75°
30
89°
76°
31
92°
76°
1
90°
75°
2
90°
77°
3
89°
77°
4
90°
76°
5
90°
77°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Boynton Beach
Boynton Beach's August 2026 forecast shows daily high temperatures ranging from 86° to 94°, with overnight lows between 75° and 79°. The average high for August is 90° 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 Boynton Beach. See also: September | October | November.
