S
M
T
W
T
F
S
26
86°
67°
27
90°
68°
28
88°
67°
29
84°
64°
30
85°
63°
31
84°
66°
1
86°
63°
2
85°
64°
3
84°
63°
4
83°
63°
5
87°
66°
6
Hist. Avg.
84°
69°
7
Hist. Avg.
84°
69°
8
Hist. Avg.
84°
69°
9
Hist. Avg.
84°
69°
10
Hist. Avg.
84°
69°
11
Hist. Avg.
84°
68°
12
Hist. Avg.
83°
68°
13
Hist. Avg.
83°
68°
14
Hist. Avg.
83°
68°
15
Hist. Avg.
83°
68°
16
Hist. Avg.
83°
68°
17
Hist. Avg.
83°
68°
18
Hist. Avg.
83°
68°
19
Hist. Avg.
82°
67°
20
Hist. Avg.
82°
67°
21
Hist. Avg.
82°
67°
22
Hist. Avg.
82°
67°
23
Hist. Avg.
82°
67°
24
Hist. Avg.
82°
66°
25
Hist. Avg.
82°
66°
26
Hist. Avg.
81°
66°
27
Hist. Avg.
81°
66°
28
Hist. Avg.
81°
65°
29
Hist. Avg.
81°
65°
30
Hist. Avg.
81°
65°
31
Hist. Avg.
80°
65°
1
Hist. Avg.
80°
64°
2
Hist. Avg.
80°
64°
3
Hist. Avg.
80°
64°
4
Hist. Avg.
80°
63°
5
Hist. Avg.
79°
63°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Boynton Beach
Boynton Beach's August 2026 forecast shows daily high temperatures ranging from 83° to 90°, with overnight lows between 63° and 68°. The average high for August is 86° with an average low of 65°. 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.