S
M
T
W
T
F
S
29
77°
49°
30
76°
51°
31
72°
52°
1
68°
50°
2
71°
50°
3
75°
48°
4
79°
50°
5
80°
51°
6
76°
44°
7
80°
47°
8
77°
43°
9
75°
39°
10
74°
43°
11
72°
40°
12
73°
42°
13
76°
43°
14
73°
36°
15
76°
42°
16
77°
42°
17
77°
43°
18
78°
42°
19
77°
42°
20
77°
41°
21
76°
42°
22
75°
42°
23
69°
37°
24
68°
36°
25
74°
39°
26
79°
43°
27
80°
44°
28
80°
43°
29
79°
44°
30
80°
45°
1
81°
45°
2
82°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Hillside
Hillside's April 2026 forecast shows daily high temperatures ranging from 68° to 82°, with overnight lows between 36° and 51°. The average high for April is 76° with an average low of 43°. 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 Hillside. See also: May | June | July.