S
M
T
W
T
F
S
26
93°
77°
27
94°
79°
28
94°
78°
29
95°
78°
30
95°
79°
31
95°
80°
1
96°
79°
2
89°
74°
3
93°
78°
4
93°
77°
5
89°
76°
6
91°
80°
7
91°
78°
8
91°
81°
9
91°
83°
10
92°
83°
11
93°
79°
12
94°
78°
13
92°
76°
14
94°
79°
15
93°
79°
16
92°
79°
17
95°
77°
18
96°
78°
19
95°
80°
20
94°
78°
21
93°
78°
22
94°
77°
23
92°
77°
24
93°
79°
25
94°
80°
26
93°
79°
27
92°
78°
28
94°
77°
29
93°
76°
30
92°
77°
31
93°
77°
1
91°
76°
2
92°
78°
3
88°
78°
4
88°
79°
5
88°
78°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Riviera Beach
Riviera Beach's August 2026 forecast shows daily high temperatures ranging from 88° to 94°, with overnight lows between 76° and 80°. The average high for August is 92° 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 Riviera Beach. See also: September | October | November.
