Fire Island, NY Weather & Growing Conditions
Today
80°F
Mostly Sunny
Mostly sunny. High near 80, with temperatures falling to around 78 in the afternoon. East wind 3 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Mostly Sunny | 3 to 8 mph E | 0% |
| Tonight | 68°F | Mostly Cloudy | 2 to 7 mph E | 7% |
| Wednesday | 80°F | Partly Sunny then Slight Chance Rain Showers | 2 to 9 mph SE | 18% |
| Wednesday Night | 73°F | Mostly Cloudy then Slight Chance Rain Showers | 12 mph S | 21% |
| Thursday | 83°F | Mostly Sunny | 9 to 18 mph SW | 10% |
| Thursday Night | 74°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 12 to 21 mph SW | 16% |
| Friday | 84°F | Sunny | 9 to 16 mph SW | 11% |
| Friday Night | 75°F | Chance Showers And Thunderstorms | 9 to 16 mph SW | 31% |
| Saturday | 82°F | Mostly Sunny then Slight Chance Rain Showers | 9 to 15 mph SW | 16% |
| Saturday Night | 75°F | Chance Showers And Thunderstorms | 9 to 15 mph SW | 27% |
| Sunday | 82°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 16 mph SW | 8% |
| Monday Night | 75°F | Slight Chance Rain Showers | 10 to 16 mph W | 18% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fire Island, NY
Last spring frost
Apr 4
First fall frost
Nov 11
Growing season
219 days
Explore more for Fire Island, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Molloy Cercom, Ny (5.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.