S
M
T
W
T
F
S
31
79°
54°
1
76°
59°
2
80°
59°
3
78°
58°
4
71°
50°
5
69°
49°
6
71°
54°
7
71°
57°
8
72°
60°
9
74°
60°
10
81°
58°
11
72°
52°
12
72°
51°
13
71°
59°
14
75°
55°
15
73°
56°
16
80°
61°
17
74°
56°
18
74°
59°
19
77°
58°
20
76°
58°
21
84°
57°
22
83°
62°
23
85°
63°
24
84°
62°
25
84°
64°
26
81°
63°
27
79°
62°
28
77°
57°
29
82°
56°
30
83°
61°
1
84°
65°
2
80°
58°
3
81°
60°
4
81°
55°
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 69° to 85°, with overnight lows between 49° and 65°. The average high for June is 78° with an average low of 58°. 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.
