Central Islip, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Central Islip, a community in Suffolk County, New York.
This Afternoon
68°F
Partly Sunny
Partly sunny. High near 68, with temperatures falling to around 63 in the afternoon. Southwest wind around 9 mph.
7-day forecast for Central Islip
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Partly Sunny | 9 mph SW | 0% |
| Tonight | 53°F | Patchy Fog | 6 mph SW | 3% |
| Wednesday | 71°F | Patchy Fog then Sunny | 3 to 12 mph SW | 3% |
| Wednesday Night | 58°F | Partly Cloudy | 8 mph SW | 2% |
| Thursday | 70°F | Slight Chance Rain Showers | 7 to 12 mph S | 19% |
| Thursday Night | 61°F | Rain Showers | 6 to 9 mph SW | 83% |
| Friday | 67°F | Showers And Thunderstorms | 7 mph S | 92% |
| Friday Night | 55°F | Showers And Thunderstorms | 6 mph W | 92% |
| Saturday | 65°F | Rain Showers Likely | 8 mph NW | 59% |
| Saturday Night | 44°F | Slight Chance Rain Showers | 8 mph NW | 19% |
| Sunday | 60°F | Slight Chance Rain Showers then Mostly Sunny | 9 mph W | 18% |
| Sunday Night | 41°F | Partly Cloudy | 5 to 8 mph W | 14% |
| Monday | 59°F | Chance Light Rain | 8 to 15 mph NW | 25% |
| Monday Night | 40°F | Chance Light Rain | 10 mph W | 25% |
Forecast source: National Weather Service (api.weather.gov) for Central Islip (40.784, -73.194). Updated through the day.
Growing snapshot for Central Islip
Last spring frost
Apr 10
First fall frost
Nov 2
Growing season
207 days
Hardiness zone
7b
More local growing data for Central Islip: nearby ZIP 11722 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Islip Li Macarthur Ap, Ny (5 mi from Central Islip). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.