Sayville, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sayville, a community in Suffolk County, New York.
Overnight
66°F
Partly Cloudy
Partly cloudy, with a low around 66. North wind around 6 mph.
7-day forecast for Sayville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Partly Cloudy | 6 mph N | 0% |
| Tuesday | 82°F | Mostly Sunny | 6 mph E | 0% |
| Tuesday Night | 66°F | Mostly Cloudy | 5 mph E | 7% |
| Wednesday | 81°F | Partly Sunny then Slight Chance Rain Showers | 2 to 8 mph SE | 16% |
| Wednesday Night | 72°F | Mostly Cloudy then Slight Chance Rain Showers | 6 mph S | 22% |
| Thursday | 85°F | Mostly Sunny | 5 to 12 mph SW | 11% |
| Thursday Night | 73°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 6 to 12 mph SW | 17% |
| Friday | 86°F | Sunny | 6 to 10 mph SW | 14% |
| Friday Night | 72°F | Chance Showers And Thunderstorms | 5 to 9 mph SW | 30% |
| Saturday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 19% |
| Saturday Night | 72°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 9 mph SW | 27% |
| Sunday | 86°F | Mostly Sunny | 5 to 9 mph SW | 14% |
| Sunday Night | 72°F | Mostly Clear | 5 to 8 mph SW | 10% |
| Monday | 87°F | Sunny | 5 to 12 mph SW | 8% |
Forecast source: National Weather Service (api.weather.gov) for Sayville (40.748, -73.085). Updated through the day.
Growing snapshot for Sayville
Last spring frost
Apr 4
First fall frost
Nov 11
Growing season
219 days
Hardiness zone
7b
More local growing data for Sayville: nearby ZIP 11782 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Molloy Cercom, Ny (1.2 mi from Sayville). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.