S
M
T
W
T
F
S
29
31°
10°
30
42°
22°
31
39°
26°
1
31°
26°
2
29°
17°
3
31°
17°
4
31°
18°
5
45°
18°
6
48°
30°
7
37°
28°
8
38°
17°
9
48°
16°
10
50°
28°
11
51°
31°
12
39°
27°
13
48°
24°
14
53°
32°
15
47°
32°
16
41°
34°
17
59°
33°
18
45°
31°
19
49°
31°
20
51°
27°
21
37°
26°
22
39°
23°
23
46°
29°
24
42°
33°
25
42°
36°
26
46°
31°
27
45°
32°
28
46°
30°
29
43°
32°
30
45°
33°
1
47°
34°
2
48°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Round Island
Round Island's April 2026 forecast shows daily high temperatures ranging from 37° to 48°, with overnight lows between 23° and 36°. The average high for April is 44° with an average low of 31°. 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 Round Island. See also: May | June | July.
