S
M
T
W
T
F
S
26
95°
79°
27
89°
78°
28
89°
78°
29
93°
79°
30
94°
84°
31
92°
79°
1
91°
78°
2
93°
78°
3
90°
79°
4
89°
78°
5
90°
78°
6
90°
78°
7
93°
82°
8
95°
82°
9
95°
80°
10
95°
84°
11
92°
83°
12
90°
82°
13
92°
82°
14
95°
83°
15
96°
82°
16
93°
82°
17
94°
84°
18
92°
81°
19
91°
81°
20
94°
80°
21
93°
80°
22
88°
79°
23
92°
80°
24
90°
80°
25
90°
78°
26
93°
78°
27
93°
81°
28
93°
82°
29
86°
32°
30
87°
81°
31
84°
84°
1
88°
79°
2
91°
84°
3
90°
86°
4
90°
84°
5
90°
82°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in St Thomas
St Thomas's August 2026 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.
