Fishers Island, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fishers Island, a community in Suffolk County, New York.
Today
80°F
Mostly Sunny
Mostly sunny. High near 80, with temperatures falling to around 78 in the afternoon. Southwest wind 3 to 7 mph.
7-day forecast for Fishers Island
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Mostly Sunny | 3 to 7 mph SW | 0% |
| Tonight | 64°F | Mostly Cloudy then Slight Chance Rain Showers | 2 to 6 mph NE | 15% |
| Wednesday | 80°F | Mostly Sunny | 2 to 7 mph SW | 11% |
| Wednesday Night | 70°F | Mostly Cloudy then Slight Chance Rain Showers | 7 mph S | 17% |
| Thursday | 83°F | Mostly Sunny | 7 to 14 mph SW | 11% |
| Thursday Night | 73°F | Mostly Clear | 9 to 13 mph SW | 11% |
| Friday | 84°F | Sunny | 8 to 13 mph SW | 7% |
| Friday Night | 72°F | Slight Chance Showers And Thunderstorms | 6 to 13 mph SW | 18% |
| Saturday | 78°F | Mostly Sunny | 6 to 10 mph SW | 14% |
| Saturday Night | 71°F | Slight Chance Showers And Thunderstorms | 6 to 10 mph SW | 21% |
| Sunday | 78°F | Mostly Sunny | 6 to 12 mph SW | 12% |
| Sunday Night | 72°F | Mostly Clear | 6 to 12 mph SW | 6% |
| Monday | 79°F | Sunny | 6 to 13 mph SW | 8% |
| Monday Night | 70°F | Mostly Clear | 7 to 13 mph W | 12% |
Forecast source: National Weather Service (api.weather.gov) for Fishers Island (41.268, -71.993). Updated through the day.
Growing snapshot for Fishers Island
Last spring frost
Apr 16
First fall frost
Oct 28
Growing season
194 days
Hardiness zone
7a
More local growing data for Fishers Island: nearby ZIP 06390 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
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Amityville
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Belle Terre
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Brentwood
Bridgehampton
Brightwaters
Brookhaven
Calverton
Captree
Center Moriches
Centereach
Centerport
Central Islip
Cold Spring Harbor
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Copiague
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Dering Harbor
Climate data from the nearest NOAA station, Groton New London Ap, Ct (6.5 mi from Fishers Island). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.