S
M
T
W
T
F
S
29
48°
24°
30
61°
44°
31
66°
49°
1
72°
50°
2
50°
39°
3
57°
39°
4
67°
40°
5
55°
41°
6
53°
39°
7
56°
32°
8
45°
29°
9
47°
27°
10
53°
33°
11
62°
45°
12
53°
37°
13
65°
48°
14
78°
52°
15
81°
57°
16
82°
58°
17
80°
53°
18
60°
47°
19
51°
37°
20
53°
31°
21
50°
41°
22
52°
42°
23
67°
49°
24
59°
44°
25
52°
44°
26
53°
42°
27
57°
45°
28
56°
47°
29
57°
48°
30
58°
45°
1
59°
47°
2
59°
47°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
April Weather in Islip Terrace
Islip Terrace's April 2026 forecast shows daily high temperatures ranging from 50° to 67°, with overnight lows between 41° and 49°. The average high for April is 57° 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 Islip Terrace. See also: May | June | July.
