S
M
T
W
T
F
S
27
92°
64°
28
90°
63°
29
84°
60°
30
82°
59°
1
83°
60°
2
83°
63°
3
88°
61°
4
83°
59°
5
83°
59°
6
82°
57°
7
80°
55°
8
79°
51°
9
79°
52°
10
78°
53°
11
79°
53°
12
79°
54°
13
80°
54°
14
81°
53°
15
80°
55°
16
79°
53°
17
81°
52°
18
81°
51°
19
80°
51°
20
78°
52°
21
77°
52°
22
78°
50°
23
77°
51°
24
78°
52°
25
79°
52°
26
80°
51°
27
76°
48°
28
82°
55°
29
82°
55°
30
Hist. Avg.
79°
52°
31
Hist. Avg.
79°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Riverside
Riverside's October 2026 forecast shows daily high temperatures ranging from 76° to 92°, with overnight lows between 48° and 64°. The average high for October is 81° with an average low of 55°. 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.
