Fire Island, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fire Island, a community in Suffolk County, New York.
Today
78°F
Mostly Sunny
Mostly sunny, with a high near 78. East wind 3 to 8 mph.
7-day forecast for Fire Island
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Mostly Sunny | 3 to 8 mph E | 0% |
| Tonight | 70°F | Mostly Cloudy | 2 to 7 mph E | 7% |
| Wednesday | 79°F | Partly Sunny then Slight Chance Rain Showers | 2 to 9 mph E | 18% |
| Wednesday Night | 73°F | Mostly Cloudy then Slight Chance Rain Showers | 12 mph S | 21% |
| Thursday | 81°F | Mostly Sunny | 9 to 18 mph SW | 10% |
| Thursday Night | 75°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 10 to 21 mph SW | 16% |
| Friday | 83°F | Sunny | 9 to 16 mph SW | 12% |
| Friday Night | 75°F | Chance Showers And Thunderstorms | 9 to 16 mph SW | 31% |
| Saturday | 81°F | Mostly Sunny then Slight Chance Rain Showers | 8 to 15 mph SW | 17% |
| Saturday Night | 74°F | Chance Showers And Thunderstorms | 9 to 15 mph SW | 27% |
| Sunday | 81°F | Mostly Sunny | 9 to 14 mph SW | 13% |
| Sunday Night | 75°F | Mostly Clear | 9 to 14 mph SW | 10% |
| Monday | 83°F | Sunny | 9 to 15 mph SW | 8% |
| Monday Night | 74°F | Slight Chance Rain Showers | 9 to 15 mph SW | 18% |
Forecast source: National Weather Service (api.weather.gov) for Fire Island (40.637, -73.203). Updated through the day.
Growing snapshot for Fire Island
Last spring frost
Apr 4
First fall frost
Nov 11
Growing season
219 days
More local growing data for Fire Island: nearby ZIP 11770 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
Amagansett
Amityville
Aquebogue
Asharoken
Babylon
Baiting Hollow
Bay Shore
Bayport
Baywood
Belle Terre
Bellport
Blue Point
Bohemia
Brentwood
Bridgehampton
Brightwaters
Brookhaven
Calverton
Captree
Center Moriches
Centereach
Centerport
Central Islip
Cold Spring Harbor
Commack
Copiague
Coram
Cutchogue
Deer Park
Dering Harbor
Climate data from the nearest NOAA station, Molloy Cercom, Ny (5.6 mi from Fire Island). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.