S
M
T
W
T
F
S
27
90°
81°
28
89°
81°
29
90°
82°
30
92°
80°
31
89°
80°
1
95°
82°
2
88°
80°
3
90°
81°
4
93°
81°
5
93°
82°
6
91°
81°
7
93°
82°
8
93°
82°
9
90°
81°
10
93°
82°
11
94°
81°
12
93°
84°
13
94°
83°
14
92°
80°
15
93°
79°
16
86°
80°
17
85°
76°
18
88°
83°
19
89°
84°
20
90°
83°
21
93°
73°
22
90°
83°
23
90°
82°
24
95°
84°
25
95°
85°
26
92°
82°
27
90°
81°
28
90°
81°
29
90°
82°
30
92°
81°
31
90°
80°
1
90°
80°
2
91°
81°
3
91°
82°
4
91°
80°
5
94°
82°
6
90°
79°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in St Thomas
St Thomas's August 2025 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in St Thomas. See also: September | October | November.
