S
M
T
W
T
F
S
29
60°
24°
30
49°
27°
31
32°
26°
1
34°
22°
2
30°
25°
3
37°
25°
4
31°
18°
5
40°
22°
6
27°
11°
7
35°
-4°
8
43°
30°
9
33°
28°
10
42°
22°
11
40°
21°
12
60°
37°
13
44°
34°
14
52°
30°
15
70°
37°
16
78°
36°
17
53°
25°
18
38°
20°
19
38°
17°
20
63°
18°
21
66°
28°
22
80°
38°
23
75°
38°
24
52°
33°
25
53°
31°
26
56°
40°
27
42°
27°
28
49°
28°
29
48°
29°
30
49°
29°
1
56°
36°
2
64°
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 42° to 64°, with overnight lows between 27° and 40°. The average high for April is 52° with an average low of 33°. 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.
