S
M
T
W
T
F
S
31
89°
78°
1
90°
79°
2
89°
78°
3
89°
78°
4
90°
79°
5
86°
81°
6
86°
80°
7
87°
80°
8
86°
81°
9
85°
81°
10
86°
80°
11
86°
81°
12
87°
81°
13
86°
80°
14
86°
81°
15
87°
79°
16
86°
81°
17
86°
82°
18
87°
82°
19
87°
81°
20
88°
80°
21
87°
81°
22
87°
81°
23
88°
80°
24
86°
81°
25
87°
81°
26
88°
80°
27
87°
82°
28
87°
82°
29
88°
81°
30
87°
81°
1
87°
80°
2
88°
82°
3
87°
81°
4
87°
81°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
Arthritis-August Weather in St Thomas
St Thomas's Arthritis-August 2026 forecast shows daily high temperatures ranging from 85° to 90°, with overnight lows between 78° and 82°. The average high for Arthritis-August is 87° 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 Arthritis-August weather will actually feel in St Thomas. See also: July | August | September.