S
M
T
W
T
F
S
1
58°
36°
2
64°
48°
3
65°
53°
4
68°
59°
5
68°
60°
6
68°
55°
7
63°
48°
8
61°
46°
9
59°
45°
10
58°
44°
11
57°
43°
12
53°
42°
13
51°
43°
14
53°
45°
15
56°
38°
16
55°
42°
17
51°
42°
18
53°
44°
19
57°
44°
20
57°
43°
21
56°
42°
22
56°
37°
23
45°
35°
24
44°
34°
25
43°
36°
26
43°
32°
27
42°
32°
28
43°
35°
29
48°
39°
30
52°
42°
1
53°
41°
2
51°
41°
3
53°
40°
4
49°
39°
5
51°
37°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
November Weather in Islip
Islip's November 2026 forecast shows daily high temperatures ranging from 42° to 68°, with overnight lows between 32° and 60°. The average high for November is 54° with an average low of 43°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how November weather will actually feel in Islip. See also: December | January | February.
