S
M
T
W
T
F
S
29
44°
27°
30
50°
40°
31
52°
43°
1
48°
41°
2
42°
37°
3
49°
38°
4
61°
38°
5
48°
39°
6
49°
35°
7
53°
31°
8
41°
29°
9
43°
28°
10
49°
32°
11
59°
42°
12
47°
37°
13
52°
44°
14
72°
47°
15
75°
49°
16
73°
50°
17
74°
46°
18
49°
44°
19
50°
40°
20
51°
38°
21
44°
35°
22
45°
40°
23
66°
42°
24
51°
39°
25
47°
37°
26
49°
38°
27
57°
40°
28
54°
43°
29
55°
42°
30
52°
45°
1
58°
44°
2
51°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Block Island
Block Island's April 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for April 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 April weather will actually feel in Block Island. See also: May | June | July.