West Islip, NY Weather & Growing Conditions
This Afternoon
70°F
Mostly Sunny
Mostly sunny. High near 70, with temperatures falling to around 68 in the afternoon. Southeast wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Mostly Sunny | 9 mph SE | 0% |
| Tonight | 58°F | Mostly Cloudy | 8 mph SE | 2% |
| Sunday | 73°F | Rain Showers Likely then Rain | 6 to 14 mph SE | 79% |
| Sunday Night | 58°F | Rain then Rain Showers | 7 to 13 mph W | 80% |
| Monday | 69°F | Chance Rain Showers | 10 to 14 mph NE | 39% |
| Monday Night | 55°F | Chance Rain Showers | 7 to 13 mph NE | 28% |
| Tuesday | 67°F | Chance Rain Showers | 15 mph NE | 28% |
| Tuesday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 16 mph NE | 24% |
| Wednesday | 67°F | Slight Chance Rain Showers | 16 to 21 mph NE | 17% |
| Wednesday Night | 54°F | Slight Chance Rain Showers | 20 mph NE | 22% |
| Thursday | 67°F | Chance Rain Showers | 18 to 22 mph NE | 34% |
| Thursday Night | 53°F | Chance Rain Showers | 20 mph NE | 39% |
| Friday | 67°F | Chance Rain Showers | 22 mph N | 41% |
| Friday Night | 54°F | Chance Rain Showers | 16 to 20 mph N | 41% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for West Islip, NY
Last spring frost
Apr 6
First fall frost
Nov 6
Growing season
213 days
Hardiness zone
7b
Explore more for West Islip, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Farmingdale Ap, Ny (6.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.