S
M
T
W
T
F
S
26
65°
32°
27
73°
38°
28
74°
38°
29
69°
51°
30
57°
43°
1
57°
38°
2
50°
41°
3
55°
37°
4
71°
46°
5
72°
43°
6
56°
41°
7
57°
39°
8
57°
36°
9
60°
28°
10
67°
47°
11
58°
38°
12
58°
38°
13
52°
38°
14
52°
48°
15
67°
52°
16
77°
48°
17
80°
59°
18
85°
47°
19
89°
58°
20
82°
55°
21
61°
45°
22
66°
37°
23
68°
38°
24
56°
49°
25
72°
51°
26
88°
51°
27
75°
54°
28
67°
50°
29
66°
45°
30
57°
42°
31
64°
44°
1
67°
48°
2
73°
50°
3
77°
54°
4
79°
56°
5
76°
56°
6
75°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in South Hero
South Hero's May 2026 forecast shows daily high temperatures ranging from 57° to 79°, with overnight lows between 42° and 56°. The average high for May is 71° with an average low of 50°. 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 South Hero. See also: June | July | August.
