S
M
T
W
T
F
S
26
84°
71°
27
85°
70°
28
85°
71°
29
84°
71°
30
81°
72°
1
81°
72°
2
82°
70°
3
81°
71°
4
81°
70°
5
79°
71°
6
81°
72°
7
80°
72°
8
81°
71°
9
81°
72°
10
82°
72°
11
82°
73°
12
83°
72°
13
82°
73°
14
83°
73°
15
85°
71°
16
82°
69°
17
82°
71°
18
88°
72°
19
88°
73°
20
89°
71°
21
88°
73°
22
89°
74°
23
86°
73°
24
86°
71°
25
87°
71°
26
86°
72°
27
87°
72°
28
87°
75°
29
90°
74°
30
90°
74°
31
89°
75°
1
89°
75°
2
88°
74°
3
88°
75°
4
89°
73°
5
88°
75°
6
90°
75°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Boynton Beach
Boynton Beach's May 2026 forecast shows daily high temperatures ranging from 79° to 90°, with overnight lows between 69° and 75°. The average high for May is 85° with an average low of 72°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Boynton Beach. See also: June | July | August.
