S
M
T
W
T
F
S
28
91°
82°
29
91°
83°
30
91°
83°
1
90°
83°
2
92°
82°
3
92°
82°
4
90°
83°
5
93°
83°
6
91°
81°
7
90°
81°
8
90°
81°
9
90°
80°
10
90°
80°
11
90°
79°
12
90°
79°
13
90°
79°
14
90°
78°
15
91°
79°
16
90°
78°
17
89°
78°
18
90°
79°
19
86°
80°
20
87°
81°
21
86°
81°
22
87°
80°
23
87°
81°
24
88°
81°
25
87°
80°
26
87°
81°
27
88°
81°
28
87°
80°
29
87°
81°
30
88°
81°
31
87°
80°
1
88°
80°
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 86° to 91°, with overnight lows between 78° and 81°. The average high for July is 89° with an average low of 80°. 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.
