S
M
T
W
T
F
S
31
74°
44°
1
75°
44°
2
78°
49°
3
81°
47°
4
83°
49°
5
82°
55°
6
80°
62°
7
77°
55°
8
83°
56°
9
82°
63°
10
83°
70°
11
82°
70°
12
77°
65°
13
81°
61°
14
72°
53°
15
70°
55°
16
73°
56°
17
70°
62°
18
69°
54°
19
69°
50°
20
67°
53°
21
67°
54°
22
67°
56°
23
72°
57°
24
73°
56°
25
71°
57°
26
70°
60°
27
71°
60°
28
73°
59°
29
69°
55°
30
69°
56°
1
70°
58°
2
72°
62°
3
71°
58°
4
71°
57°
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 67° to 73°, with overnight lows between 50° and 62°. The average high for June is 70° 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.