S
M
T
W
T
F
S
29
77°
42°
30
82°
64°
31
83°
66°
1
83°
64°
2
79°
66°
3
80°
53°
4
62°
41°
5
67°
40°
6
70°
43°
7
70°
45°
8
73°
54°
9
75°
57°
10
72°
58°
11
71°
58°
12
68°
56°
13
70°
49°
14
65°
50°
15
69°
47°
16
74°
53°
17
73°
53°
18
69°
52°
19
74°
53°
20
75°
54°
21
75°
55°
22
74°
56°
23
75°
55°
24
76°
56°
25
75°
52°
26
69°
48°
27
65°
45°
28
65°
52°
29
68°
49°
30
66°
46°
1
67°
54°
2
71°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Harrison
Harrison's April 2026 forecast shows daily high temperatures ranging from 62° to 80°, with overnight lows between 40° and 66°. The average high for April is 71° with an average low of 52°. 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 Harrison. See also: May | June | July.