S
M
T
W
T
F
S
29
66°
30°
30
72°
50°
31
79°
59°
1
86°
61°
2
82°
64°
3
82°
59°
4
82°
63°
5
72°
54°
6
64°
43°
7
70°
43°
8
61°
43°
9
66°
36°
10
75°
37°
11
86°
57°
12
84°
59°
13
84°
60°
14
90°
62°
15
91°
65°
16
89°
62°
17
90°
64°
18
92°
65°
19
87°
52°
20
75°
46°
21
81°
57°
22
82°
58°
23
82°
58°
24
79°
49°
25
77°
54°
26
71°
53°
27
72°
50°
28
75°
54°
29
76°
54°
30
79°
55°
1
73°
54°
2
76°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Harrisburg
Harrisburg's April 2026 forecast shows daily high temperatures ranging from 71° to 92°, with overnight lows between 46° and 65°. The average high for April is 81° with an average low of 57°. 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 Harrisburg. See also: May | June | July.
