Sayville, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sayville, a community in Suffolk County, New York.
Overnight
55°F
Mostly Cloudy
Mostly cloudy. Low around 55, with temperatures rising to around 57 overnight. Northeast wind around 9 mph.
7-day forecast for Sayville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Mostly Cloudy | 9 mph NE | 0% |
| Saturday | 70°F | Mostly Sunny | 10 mph E | 0% |
| Saturday Night | 55°F | Mostly Cloudy | 6 to 9 mph SE | 2% |
| Sunday | 71°F | Rain | 7 to 12 mph SE | 77% |
| Sunday Night | 56°F | Rain | 6 to 10 mph NE | 88% |
| Monday | 68°F | Chance Light Rain | 10 to 15 mph NE | 46% |
| Monday Night | 53°F | Mostly Cloudy then Slight Chance Rain Showers | 7 to 13 mph NE | 21% |
| Tuesday | 65°F | Chance Rain Showers | 16 mph NE | 26% |
| Tuesday Night | 53°F | Chance Rain Showers | 14 to 17 mph NE | 26% |
| Wednesday | 65°F | Slight Chance Rain Showers | 21 mph NE | 20% |
| Wednesday Night | 53°F | Chance Rain Showers | 20 mph NE | 34% |
| Thursday | 65°F | Chance Rain Showers | 22 mph NE | 34% |
| Thursday Night | 52°F | Chance Rain Showers | 18 mph NE | 40% |
| Friday | 66°F | Chance Rain Showers | 20 mph N | 37% |
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
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 (1.2 mi from Sayville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.