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