S
M
T
W
T
F
S
27
90°
65°
28
89°
63°
29
82°
62°
30
81°
59°
1
80°
58°
2
81°
59°
3
82°
60°
4
81°
57°
5
81°
59°
6
87°
60°
7
87°
61°
8
86°
62°
9
87°
62°
10
85°
55°
11
85°
53°
12
80°
52°
13
76°
54°
14
77°
61°
15
80°
61°
16
80°
60°
17
81°
61°
18
82°
59°
19
84°
53°
20
80°
51°
21
77°
51°
22
75°
57°
23
77°
59°
24
82°
59°
25
Hist. Avg.
78°
56°
26
Hist. Avg.
78°
55°
27
Hist. Avg.
78°
55°
28
Hist. Avg.
77°
55°
29
Hist. Avg.
77°
54°
30
Hist. Avg.
77°
54°
31
Hist. Avg.
76°
54°
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 75° to 90°, with overnight lows between 51° and 65°. The average high for October is 82° with an average low of 58°. 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.
