Monthly Historical AveragesWest Islip, NY
Average Temperature
High
14°
Feels 13
Low
6°
Feels 4
Average Precipitation
9 Days
81.5mm
0.1cm
Content continues below
Daily Historical Averages
S
M
T
W
T
F
S
ForecastMonday, April 6, 2026
Day
10°Feels 8
Wind
30 km/h W
Gust
45 km/h
Humidity
37%
P.O.P
20%
Night
5°Feels 1
Wind
19 km/h W
Gust
29 km/h
Humidity
81%
P.O.P
40%
Rain
~1 mm
Historical AveragesApr 6
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity