S
M
T
W
T
F
S
26
89°
65°
27
89°
64°
28
87°
68°
29
87°
62°
30
89°
67°
1
89°
65°
2
94°
74°
3
82°
71°
4
84°
69°
5
90°
71°
6
90°
71°
7
94°
67°
8
93°
66°
9
93°
68°
10
93°
73°
11
91°
73°
12
92°
73°
13
96°
75°
14
94°
71°
15
94°
65°
16
92°
66°
17
89°
71°
18
90°
73°
19
87°
75°
20
88°
76°
21
89°
76°
22
89°
77°
23
89°
77°
24
87°
78°
25
87°
74°
26
89°
75°
27
88°
73°
28
87°
72°
29
86°
72°
30
87°
73°
31
86°
74°
1
87°
72°
2
88°
71°
3
85°
73°
4
86°
72°
5
85°
73°
6
84°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in South Miami Heights
South Miami Heights's May 2026 forecast shows daily high temperatures ranging from 84° to 89°, with overnight lows between 71° and 78°. The average high for May is 87° with an average low of 74°. 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 South Miami Heights. See also: June | July | August.