S
M
T
W
T
F
S
28
85°
69°
29
85°
74°
30
84°
73°
31
86°
74°
1
85°
75°
2
86°
78°
3
86°
76°
4
89°
77°
5
86°
78°
6
87°
77°
7
87°
76°
8
87°
73°
9
85°
76°
10
89°
76°
11
87°
76°
12
87°
76°
13
86°
75°
14
86°
76°
15
88°
78°
16
86°
78°
17
90°
77°
18
87°
79°
19
87°
77°
20
88°
76°
21
89°
76°
22
83°
76°
23
85°
76°
24
85°
77°
25
89°
75°
26
87°
76°
27
85°
76°
28
86°
74°
29
84°
75°
30
86°
77°
31
86°
79°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
January Weather in St Thomas
St Thomas's January 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for January 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 January weather will actually feel in St Thomas. See also: February | March | April.
