S
M
T
W
T
F
S
29
43°
29°
30
53°
42°
31
54°
45°
1
52°
42°
2
42°
39°
3
51°
40°
4
59°
40°
5
56°
41°
6
48°
41°
7
49°
29°
8
43°
27°
9
45°
22°
10
53°
31°
11
57°
38°
12
50°
31°
13
57°
44°
14
60°
44°
15
69°
48°
16
68°
48°
17
62°
45°
18
49°
44°
19
54°
41°
20
51°
35°
21
45°
34°
22
47°
37°
23
60°
39°
24
51°
31°
25
50°
30°
26
51°
40°
27
57°
40°
28
52°
43°
29
49°
45°
30
53°
46°
1
55°
43°
2
50°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Nantucket
Nantucket's April 2026 forecast shows daily high temperatures ranging from 49° to 57°, with overnight lows between 40° and 46°. The average high for April is 53° with an average low of 43°. 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 Nantucket. See also: May | June | July.