S
M
T
W
T
F
S
29
74°
45°
30
86°
61°
31
80°
65°
1
64°
53°
2
82°
56°
3
82°
57°
4
66°
43°
5
N/A
6
64°
42°
7
57°
45°
8
77°
56°
9
75°
59°
10
75°
55°
11
81°
61°
12
83°
64°
13
82°
61°
14
72°
43°
15
74°
51°
16
69°
47°
17
68°
49°
18
70°
45°
19
72°
53°
20
75°
54°
21
76°
54°
22
76°
51°
23
65°
52°
24
75°
49°
25
69°
53°
26
77°
54°
27
74°
53°
28
75°
53°
29
72°
52°
30
67°
53°
1
68°
54°
2
69°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
April Weather in St. Thomas
St. Thomas's April 2026 forecast shows daily high temperatures ranging from 57° to 83°, with overnight lows between 42° and 64°. The average high for April is 72° with an average low of 52°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in St. Thomas. See also: May | June | July.