S
M
T
W
T
F
S
26
81°
61°
27
82°
70°
28
77°
69°
29
69°
57°
30
66°
51°
1
70°
51°
2
72°
50°
3
78°
46°
4
79°
59°
5
71°
59°
6
58°
49°
7
72°
51°
8
80°
59°
9
83°
62°
10
77°
51°
11
77°
49°
12
82°
59°
13
86°
59°
14
85°
61°
15
84°
62°
16
85°
63°
17
81°
61°
18
82°
62°
19
83°
58°
20
80°
62°
21
82°
63°
22
80°
63°
23
79°
62°
24
79°
63°
25
78°
63°
26
79°
64°
27
80°
63°
28
81°
62°
29
81°
63°
30
82°
63°
31
81°
61°
1
84°
62°
2
86°
65°
3
87°
65°
4
85°
66°
5
82°
67°
6
83°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Saint Thomas
Saint Thomas's May 2026 forecast shows daily high temperatures ranging from 58° to 87°, with overnight lows between 49° and 67°. The average high for May is 81° with an average low of 61°. 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 Saint Thomas. See also: June | July | August.
