West Islip, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for West Islip, a community in Suffolk County, New York.
Tonight
58°F
Partly Cloudy
Partly cloudy, with a low around 58. North wind 6 to 12 mph.
7-day forecast for West Islip
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Partly Cloudy | 6 to 12 mph N | 0% |
| Saturday | 70°F | Mostly Sunny | 12 mph E | 0% |
| Saturday Night | 60°F | Mostly Cloudy | 6 to 9 mph SE | 3% |
| Sunday | 71°F | Showers And Thunderstorms Likely | 8 to 15 mph S | 73% |
| Sunday Night | 61°F | Showers And Thunderstorms | 7 to 13 mph SW | 90% |
| Monday | 69°F | Rain Showers Likely | 15 mph NE | 62% |
| Monday Night | 58°F | Chance Rain Showers | 12 to 18 mph NE | 29% |
| Tuesday | 64°F | Chance Rain Showers | 18 to 22 mph NE | 28% |
| Tuesday Night | 56°F | Chance Rain Showers then Mostly Cloudy | 18 to 22 mph NE | 28% |
| Wednesday | 64°F | Slight Chance Rain Showers | 22 to 25 mph NE | 19% |
| Wednesday Night | 56°F | Chance Rain Showers | 24 mph NE | 36% |
| Thursday | 64°F | Chance Rain Showers | 21 to 24 mph NE | 36% |
| Thursday Night | 56°F | Chance Rain Showers | 15 to 20 mph NE | 36% |
| Friday | 67°F | Chance Rain Showers | 15 to 18 mph N | 36% |
Forecast source: National Weather Service (api.weather.gov) for West Islip (40.703, -73.296). Updated through the day.
Growing snapshot for West Islip
Last spring frost
Apr 6
First fall frost
Nov 6
Growing season
213 days
Hardiness zone
7b
More local growing data for West Islip: nearby ZIP 11795 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Farmingdale Ap, Ny (6.5 mi from West Islip). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.