S
M
T
W
T
F
S
26
62°
40°
27
67°
51°
28
67°
47°
29
54°
36°
30
48°
34°
1
44°
35°
2
46°
34°
3
45°
37°
4
52°
41°
5
55°
43°
6
54°
42°
7
56°
44°
8
55°
43°
9
57°
44°
10
58°
46°
11
58°
48°
12
62°
49°
13
64°
40°
14
54°
39°
15
54°
39°
16
55°
41°
17
56°
44°
18
60°
51°
19
64°
46°
20
57°
42°
21
57°
42°
22
58°
43°
23
58°
45°
24
65°
54°
25
69°
51°
26
62°
48°
27
60°
46°
28
61°
51°
29
67°
55°
30
71°
55°
31
68°
54°
1
70°
55°
2
72°
58°
3
73°
57°
4
73°
52°
5
63°
51°
6
65°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in St. Thomas
St. Thomas's May 2026 forecast shows daily high temperatures ranging from 44° to 73°, with overnight lows between 34° and 58°. The average high for May is 60° with an average low of 46°. 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 St. Thomas. See also: June | July | August.
