S
M
T
W
T
F
S
29
58°
26°
30
72°
43°
31
80°
57°
1
71°
48°
2
57°
46°
3
77°
54°
4
81°
58°
5
64°
37°
6
53°
33°
7
48°
27°
8
50°
32°
9
66°
42°
10
72°
43°
11
70°
42°
12
65°
42°
13
65°
43°
14
67°
37°
15
64°
41°
16
62°
31°
17
54°
31°
18
55°
32°
19
58°
38°
20
66°
44°
21
69°
46°
22
69°
45°
23
66°
45°
24
68°
46°
25
70°
46°
26
71°
45°
27
69°
38°
28
58°
36°
29
60°
42°
30
63°
43°
1
61°
39°
2
62°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Riverside
Riverside's April 2026 forecast shows daily high temperatures ranging from 48° to 81°, with overnight lows between 27° and 58°. The average high for April is 64° with an average low of 41°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Riverside. See also: May | June | July.
