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