S
M
T
W
T
F
S
29
71°
37°
30
81°
38°
31
53°
33°
1
43°
33°
2
36°
32°
3
40°
33°
4
38°
32°
5
56°
32°
6
40°
29°
7
46°
39°
8
58°
31°
9
49°
31°
10
55°
36°
11
60°
49°
12
71°
57°
13
67°
36°
14
46°
31°
15
52°
36°
16
55°
36°
17
61°
38°
18
59°
40°
19
58°
35°
20
56°
40°
21
52°
38°
22
53°
40°
23
59°
36°
24
53°
31°
25
62°
43°
26
63°
42°
27
66°
43°
28
66°
39°
29
65°
44°
30
67°
45°
1
66°
42°
2
67°
44°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Saint Thomas
Saint Thomas's April 2026 forecast shows daily high temperatures ranging from 46° to 71°, with overnight lows between 31° and 57°. The average high for April is 59° with an average low of 39°. 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 Saint Thomas. See also: May | June | July.