S
M
T
W
T
F
S
29
57°
30°
30
72°
50°
31
81°
62°
1
85°
64°
2
65°
46°
3
72°
46°
4
79°
55°
5
74°
51°
6
61°
43°
7
55°
41°
8
51°
33°
9
59°
39°
10
66°
47°
11
70°
46°
12
66°
46°
13
81°
58°
14
85°
57°
15
85°
61°
16
84°
60°
17
81°
62°
18
73°
56°
19
60°
40°
20
55°
36°
21
56°
48°
22
67°
48°
23
76°
50°
24
71°
52°
25
57°
48°
26
60°
46°
27
64°
50°
28
62°
52°
29
64°
49°
30
65°
51°
1
64°
50°
2
62°
48°
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 56° to 76°, with overnight lows between 46° and 52°. The average high for April is 64° 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 April weather will actually feel in Riverside. See also: May | June | July.