S
M
T
W
T
F
S
29
63°
35°
30
76°
40°
31
54°
37°
1
40°
30°
2
51°
32°
3
42°
32°
4
44°
33°
5
51°
32°
6
46°
26°
7
39°
19°
8
66°
29°
9
58°
38°
10
53°
34°
11
54°
31°
12
71°
45°
13
76°
59°
14
78°
55°
15
69°
57°
16
71°
52°
17
80°
50°
18
47°
32°
19
47°
30°
20
53°
28°
21
79°
43°
22
72°
44°
23
79°
47°
24
70°
46°
25
66°
42°
26
64°
41°
27
N/A
28
61°
42°
29
55°
37°
30
54°
34°
1
48°
33°
2
53°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in Horicon
Horicon's April 2026 forecast shows daily high temperatures ranging from 48° to 61°, with overnight lows between 33° and 42°. The average high for April is 54° with an average low of 37°. 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 Horicon. See also: May | June | July.
