S
M
T
W
T
F
S
29
43°
25°
30
55°
42°
31
56°
45°
1
54°
42°
2
42°
38°
3
56°
39°
4
57°
39°
5
53°
40°
6
51°
30°
7
52°
27°
8
41°
25°
9
46°
22°
10
55°
31°
11
56°
37°
12
51°
33°
13
56°
46°
14
74°
47°
15
73°
50°
16
67°
47°
17
59°
45°
18
49°
44°
19
54°
38°
20
51°
29°
21
45°
37°
22
46°
42°
23
58°
37°
24
52°
39°
25
51°
40°
26
54°
42°
27
53°
43°
28
55°
45°
29
52°
47°
30
56°
47°
1
59°
43°
2
57°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Hyannis
Hyannis's April 2026 forecast shows daily high temperatures ranging from 45° to 59°, with overnight lows between 37° and 47°. The average high for April is 53° with an average low of 42°. 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 Hyannis. See also: May | June | July.
