S
M
T
W
T
F
S
27
80°
52°
28
81°
53°
29
82°
55°
30
82°
51°
1
83°
55°
2
79°
51°
3
82°
56°
4
78°
54°
5
77°
49°
6
76°
50°
7
78°
50°
8
79°
54°
9
83°
57°
10
87°
56°
11
78°
51°
12
77°
52°
13
79°
55°
14
80°
56°
15
81°
55°
16
82°
53°
17
77°
47°
18
73°
46°
19
73°
46°
20
74°
44°
21
72°
43°
22
71°
42°
23
69°
41°
24
70°
42°
25
70°
45°
26
71°
44°
27
70°
44°
28
74°
45°
29
74°
45°
30
76°
42°
31
75°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Riverside
Riverside's October 2026 forecast shows daily high temperatures ranging from 69° to 87°, with overnight lows between 41° and 57°. The average high for October is 77° with an average low of 49°. 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 Riverside. See also: November | December | January.
