S
M
T
W
T
F
S
31
80°
46°
1
81°
50°
2
81°
54°
3
88°
51°
4
92°
56°
5
91°
59°
6
89°
66°
7
92°
67°
8
81°
62°
9
82°
66°
10
87°
73°
11
95°
73°
12
96°
70°
13
92°
67°
14
90°
57°
15
78°
53°
16
78°
58°
17
85°
66°
18
89°
68°
19
80°
60°
20
80°
58°
21
82°
61°
22
80°
63°
23
83°
62°
24
83°
63°
25
80°
64°
26
82°
63°
27
79°
59°
28
78°
60°
29
79°
60°
30
78°
61°
1
79°
60°
2
80°
63°
3
82°
67°
4
84°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Saint Thomas
Saint Thomas's June 2026 forecast shows daily high temperatures ranging from 78° to 90°, with overnight lows between 53° and 68°. The average high for June 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 June weather will actually feel in Saint Thomas. See also: July | August | September.