S
M
T
W
T
F
S
28
87°
80°
29
88°
78°
30
88°
78°
1
89°
79°
2
89°
78°
3
90°
77°
4
88°
78°
5
89°
77°
6
88°
79°
7
88°
78°
8
89°
78°
9
88°
79°
10
88°
78°
11
90°
79°
12
89°
78°
13
88°
77°
14
89°
78°
15
88°
78°
16
88°
76°
17
89°
79°
18
89°
79°
19
90°
77°
20
88°
78°
21
88°
79°
22
89°
78°
23
89°
77°
24
90°
78°
25
88°
79°
26
88°
78°
27
89°
79°
28
88°
78°
29
89°
79°
30
88°
78°
31
88°
79°
1
89°
81°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in St Thomas
St Thomas's July 2026 forecast shows daily high temperatures ranging from 87° to 90°, with overnight lows between 76° and 81°. The average high for July is 89° with an average low of 78°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in St Thomas. See also: August | September | October.
