S
M
T
W
T
F
S
29
65°
28°
30
62°
29°
31
50°
35°
1
41°
34°
2
47°
34°
3
54°
22°
4
58°
22°
5
62°
26°
6
65°
28°
7
65°
26°
8
63°
28°
9
48°
31°
10
41°
31°
11
34°
24°
12
28°
19°
13
34°
20°
14
47°
21°
15
51°
28°
16
50°
30°
17
48°
33°
18
48°
31°
19
44°
27°
20
48°
28°
21
48°
28°
22
50°
24°
23
43°
21°
24
44°
22°
25
43°
21°
26
42°
22°
27
42°
22°
28
43°
20°
29
44°
21°
30
44°
21°
1
45°
22°
2
47°
30°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Cape Horn
Cape Horn's April 2026 forecast shows daily high temperatures ranging from 28° to 51°, with overnight lows between 19° and 33°. The average high for April is 44° with an average low of 25°. 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 Cape Horn. See also: May | June | July.