S
M
T
W
T
F
S
28
78°
68°
29
90°
66°
30
93°
68°
1
101°
75°
2
103°
76°
3
104°
77°
4
102°
74°
5
94°
72°
6
87°
71°
7
87°
69°
8
81°
70°
9
82°
71°
10
85°
69°
11
83°
64°
12
81°
62°
13
85°
64°
14
88°
66°
15
90°
68°
16
89°
65°
17
87°
66°
18
86°
65°
19
85°
66°
20
84°
66°
21
82°
65°
22
80°
62°
23
80°
62°
24
88°
68°
25
87°
67°
26
87°
68°
27
88°
69°
28
88°
69°
29
87°
68°
30
86°
68°
31
83°
66°
1
81°
66°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Saint Thomas
Saint Thomas's July 2026 forecast shows daily high temperatures ranging from 80° to 90°, with overnight lows between 62° and 71°. The average high for July is 85° with an average low of 66°. 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 Saint Thomas. See also: August | September | October.
