S
M
T
W
T
F
S
29
46°
14°
30
47°
33°
31
38°
27°
1
33°
18°
2
33°
26°
3
37°
32°
4
34°
31°
5
33°
27°
6
37°
15°
7
32°
5°
8
38°
18°
9
42°
32°
10
37°
26°
11
47°
24°
12
39°
34°
13
52°
37°
14
53°
39°
15
53°
40°
16
48°
33°
17
60°
31°
18
47°
31°
19
31°
25°
20
40°
19°
21
61°
31°
22
62°
32°
23
59°
39°
24
53°
39°
25
50°
35°
26
63°
39°
27
62°
46°
28
51°
34°
29
50°
31°
30
45°
32°
1
41°
31°
2
44°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Island Lake
Island Lake's April 2026 forecast shows daily high temperatures ranging from 41° to 63°, with overnight lows between 31° and 46°. The average high for April is 51° with an average low of 35°. 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 Island Lake. See also: May | June | July.
