S
M
T
W
T
F
S
29
73°
36°
30
78°
62°
31
83°
66°
1
80°
61°
2
80°
65°
3
82°
67°
4
76°
44°
5
59°
38°
6
67°
35°
7
59°
41°
8
77°
43°
9
78°
48°
10
79°
56°
11
78°
59°
12
84°
65°
13
81°
67°
14
88°
69°
15
81°
64°
16
76°
60°
17
86°
64°
18
76°
50°
19
63°
43°
20
72°
51°
21
78°
57°
22
81°
59°
23
76°
56°
24
72°
48°
25
66°
51°
26
67°
45°
27
66°
50°
28
67°
47°
29
70°
51°
30
69°
50°
1
70°
56°
2
69°
57°
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 63° to 88°, with overnight lows between 43° and 69°. The average high for April is 74° with an average low of 55°. 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.
