Shelter Island, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shelter Island, a community in Suffolk County, New York.
Today
82°F
Mostly Sunny
Mostly sunny. High near 82, with temperatures falling to around 80 in the afternoon. East wind around 3 mph.
7-day forecast for Shelter Island
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Mostly Sunny | 3 mph E | 0% |
| Tonight | 67°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph NE | 15% |
| Wednesday | 82°F | Mostly Sunny | 5 mph SW | 12% |
| Wednesday Night | 72°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph S | 18% |
| Thursday | 85°F | Mostly Sunny | 3 to 10 mph SW | 10% |
| Thursday Night | 73°F | Mostly Clear | 5 to 9 mph SW | 13% |
| Friday | 87°F | Sunny | 5 to 8 mph SW | 8% |
| Friday Night | 73°F | Slight Chance Showers And Thunderstorms | 3 to 8 mph SW | 18% |
| Saturday | 86°F | Mostly Sunny | 3 to 7 mph SW | 14% |
| Saturday Night | 72°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph SW | 21% |
| Sunday | 86°F | Mostly Sunny | 3 to 7 mph SW | 13% |
| Sunday Night | 73°F | Mostly Clear | 3 to 7 mph SW | 7% |
| Monday | 87°F | Sunny | 3 to 8 mph SW | 7% |
| Monday Night | 72°F | Mostly Clear | 5 to 8 mph W | 13% |
Forecast source: National Weather Service (api.weather.gov) for Shelter Island (41.055, -72.297). Updated through the day.
Growing snapshot for Shelter Island
Last spring frost
Apr 6
First fall frost
Nov 17
Growing season
221 days
Hardiness zone
7b
More local growing data for Shelter Island: nearby ZIP 11964 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
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Belle Terre
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Bohemia
Brentwood
Bridgehampton
Brightwaters
Brookhaven
Calverton
Captree
Center Moriches
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Centerport
Central Islip
Cold Spring Harbor
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Deer Park
Dering Harbor
Climate data from the nearest NOAA station, Orient Pt Sp, Ny (6.2 mi from Shelter Island). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.