S
M
T
W
T
F
S
26
87°
73°
27
88°
72°
28
87°
73°
29
89°
71°
30
87°
72°
31
86°
71°
1
80°
68°
2
79°
67°
3
80°
71°
4
82°
71°
5
83°
70°
6
86°
71°
7
87°
71°
8
87°
70°
9
86°
72°
10
86°
71°
11
85°
71°
12
87°
70°
13
86°
72°
14
89°
63°
15
86°
64°
16
81°
66°
17
82°
67°
18
85°
65°
19
86°
63°
20
80°
61°
21
78°
61°
22
78°
62°
23
79°
62°
24
79°
63°
25
80°
66°
26
78°
64°
27
85°
63°
28
85°
61°
29
78°
61°
30
76°
62°
31
77°
60°
1
76°
60°
2
76°
59°
3
77°
59°
4
77°
60°
5
78°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in North Riverside
North Riverside's August 2026 forecast shows daily high temperatures ranging from 76° to 89°, with overnight lows between 59° and 73°. The average high for August is 82° with an average low of 66°. 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 North Riverside. See also: September | October | November.
