S
M
T
W
T
F
S
31
64°
52°
1
62°
51°
2
63°
50°
3
68°
56°
4
68°
54°
5
69°
57°
6
73°
58°
7
72°
59°
8
72°
60°
9
73°
60°
10
74°
58°
11
74°
56°
12
73°
60°
13
74°
58°
14
66°
58°
15
76°
62°
16
77°
63°
17
77°
63°
18
79°
57°
19
80°
56°
20
75°
53°
21
70°
62°
22
74°
56°
23
76°
51°
24
70°
58°
25
72°
60°
26
71°
59°
27
73°
58°
28
74°
55°
29
75°
56°
30
77°
54°
1
75°
61°
2
77°
61°
3
74°
54°
4
71°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in St. Thomas
St. Thomas's June 2026 forecast shows daily high temperatures ranging from 62° to 80°, with overnight lows between 50° and 63°. The average high for June is 73° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in St. Thomas. See also: July | August | September.