S
M
T
W
T
F
S
26
87°
70°
27
85°
69°
28
84°
74°
29
84°
68°
30
89°
72°
1
87°
70°
2
96°
71°
3
80°
72°
4
79°
72°
5
82°
73°
6
84°
75°
7
88°
68°
8
89°
73°
9
91°
76°
10
91°
75°
11
88°
77°
12
91°
73°
13
90°
73°
14
91°
73°
15
90°
76°
16
89°
78°
17
85°
76°
18
86°
77°
19
88°
76°
20
88°
76°
21
89°
77°
22
90°
76°
23
89°
79°
24
89°
78°
25
89°
76°
26
88°
75°
27
87°
77°
28
88°
75°
29
89°
77°
30
89°
77°
31
88°
76°
1
87°
77°
2
87°
77°
3
88°
76°
4
86°
77°
5
86°
77°
6
87°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Deerfield Beach
Deerfield Beach's May 2026 forecast shows daily high temperatures ranging from 85° to 90°, with overnight lows between 75° and 79°. The average high for May is 88° with an average low of 77°. 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 Deerfield Beach. See also: June | July | August.
