S
M
T
W
T
F
S
29
71°
59°
30
76°
62°
31
78°
61°
1
80°
64°
2
82°
64°
3
74°
65°
4
71°
63°
5
71°
61°
6
72°
58°
7
84°
58°
8
85°
64°
9
85°
66°
10
87°
68°
11
86°
61°
12
78°
54°
13
71°
54°
14
73°
56°
15
76°
55°
16
82°
58°
17
83°
59°
18
81°
54°
19
68°
51°
20
N/A
21
70°
52°
22
72°
50°
23
72°
50°
24
75°
49°
25
77°
50°
26
76°
53°
27
75°
51°
28
75°
51°
29
76°
53°
30
74°
53°
1
69°
50°
2
68°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Harrington Park
Harrington Park's April 2026 forecast shows daily high temperatures ranging from 68° to 77°, with overnight lows between 49° and 53°. The average high for April is 73° with an average low of 51°. 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 Harrington Park. See also: May | June | July.