S
M
T
W
T
F
S
26
54°
43°
27
58°
46°
28
62°
47°
29
64°
48°
30
69°
51°
1
68°
47°
2
66°
47°
3
67°
50°
4
66°
48°
5
71°
47°
6
69°
45°
7
72°
47°
8
67°
46°
9
65°
45°
10
65°
46°
11
66°
45°
12
68°
46°
13
68°
44°
14
69°
44°
15
70°
49°
16
68°
50°
17
66°
48°
18
68°
48°
19
69°
49°
20
73°
51°
21
77°
52°
22
78°
53°
23
79°
55°
24
79°
55°
25
80°
54°
26
81°
56°
27
81°
56°
28
80°
55°
29
81°
56°
30
80°
52°
31
73°
49°
1
72°
48°
2
73°
50°
3
74°
51°
4
78°
54°
5
80°
52°
6
82°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Cape Horn
Cape Horn's May 2026 forecast shows daily high temperatures ranging from 54° to 82°, with overnight lows between 43° and 56°. The average high for May is 71° with an average low of 49°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Cape Horn. See also: June | July | August.
