S
M
T
W
T
F
S
29
63°
36°
30
80°
44°
31
70°
38°
1
39°
35°
2
70°
37°
3
62°
39°
4
53°
40°
5
53°
37°
6
51°
32°
7
37°
28°
8
71°
35°
9
69°
43°
10
54°
36°
11
55°
32°
12
81°
55°
13
79°
64°
14
81°
63°
15
75°
56°
16
75°
48°
17
78°
59°
18
67°
32°
19
48°
32°
20
55°
39°
21
61°
49°
22
65°
48°
23
61°
46°
24
61°
41°
25
60°
42°
26
61°
40°
27
56°
42°
28
55°
41°
29
61°
36°
30
54°
36°
1
56°
42°
2
55°
40°
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 48° to 81°, with overnight lows between 32° and 64°. The average high for April is 63° with an average low of 45°. 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.
