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°
59°
4
81°
62°
5
78°
55°
6
61°
52°
7
70°
48°
8
76°
51°
9
80°
55°
10
78°
57°
11
80°
54°
12
77°
55°
13
85°
57°
14
87°
60°
15
82°
61°
16
83°
57°
17
77°
60°
18
77°
62°
19
83°
62°
20
82°
61°
21
84°
56°
22
77°
55°
23
78°
56°
24
78°
57°
25
75°
56°
26
78°
56°
27
79°
57°
28
80°
57°
29
81°
61°
30
84°
64°
31
82°
65°
1
82°
65°
2
83°
61°
3
82°
66°
4
83°
66°
5
82°
67°
6
82°
67°
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 61° to 87°, with overnight lows between 48° and 67°. The average high for May is 80° with an average low of 59°. 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.
