S
M
T
W
T
F
S
26
81°
32°
27
64°
48°
28
81°
32°
29
66°
53°
30
81°
32°
1
81°
32°
2
81°
32°
3
81°
32°
4
69°
55°
5
70°
60°
6
81°
32°
7
81°
32°
8
81°
32°
9
73°
58°
10
70°
60°
11
66°
51°
12
66°
50°
13
81°
32°
14
65°
56°
15
64°
57°
16
73°
65°
17
76°
63°
18
77°
65°
19
78°
65°
20
90°
64°
21
69°
55°
22
71°
56°
23
76°
57°
24
76°
59°
25
80°
62°
26
81°
63°
27
80°
64°
28
82°
60°
29
75°
64°
30
80°
65°
31
80°
64°
1
76°
62°
2
76°
61°
3
77°
60°
4
76°
60°
5
77°
66°
6
84°
67°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Smith Island
Smith Island's May 2026 forecast shows daily high temperatures ranging from 64° to 90°, with overnight lows between 55° and 67°. The average high for May is 77° with an average low of 62°. 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 Smith Island. See also: June | July | August.