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