S
M
T
W
T
F
S
29
49°
29°
30
65°
42°
31
68°
48°
1
78°
50°
2
52°
41°
3
58°
41°
4
70°
41°
5
57°
42°
6
57°
41°
7
56°
33°
8
45°
30°
9
47°
32°
10
52°
39°
11
64°
47°
12
52°
41°
13
75°
46°
14
80°
55°
15
79°
60°
16
80°
57°
17
79°
52°
18
62°
47°
19
54°
41°
20
54°
36°
21
49°
34°
22
52°
45°
23
75°
42°
24
66°
48°
25
50°
41°
26
55°
46°
27
62°
50°
28
58°
50°
29
52°
51°
30
60°
47°
1
56°
40°
2
55°
40°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Island Park
Island Park's April 2026 forecast shows daily high temperatures ranging from 52° to 62°, with overnight lows between 40° and 51°. The average high for April is 57° with an average low of 46°. 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 Park. See also: May | June | July.