S
M
T
W
T
F
S
27
86°
70°
28
87°
70°
29
82°
73°
30
86°
73°
1
84°
74°
2
90°
79°
3
87°
77°
4
89°
78°
5
89°
79°
6
88°
77°
7
88°
76°
8
88°
77°
9
89°
80°
10
90°
80°
11
90°
78°
12
89°
74°
13
90°
75°
14
89°
74°
15
89°
75°
16
89°
74°
17
87°
74°
18
89°
73°
19
87°
72°
20
83°
75°
21
83°
74°
22
84°
74°
23
84°
73°
24
85°
74°
25
82°
73°
26
82°
70°
27
81°
69°
28
81°
73°
29
82°
73°
30
81°
72°
31
82°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Riviera Beach
Riviera Beach's October 2026 forecast shows daily high temperatures ranging from 81° to 90°, with overnight lows between 69° and 80°. The average high for October is 86° 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 October weather will actually feel in Riviera Beach. See also: November | December | January.