Sayville, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sayville, a community in Suffolk County, New York.
Overnight
54°F
Patchy Fog
Patchy fog. Partly cloudy, with a low around 54. Southwest wind around 5 mph.
7-day forecast for Sayville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Patchy Fog | 5 mph SW | 3% |
| Wednesday | 70°F | Patchy Fog then Sunny | 3 to 10 mph SW | 3% |
| Wednesday Night | 58°F | Partly Cloudy | 7 mph SW | 2% |
| Thursday | 69°F | Slight Chance Rain Showers | 6 to 12 mph S | 17% |
| Thursday Night | 60°F | Rain Showers | 9 mph SW | 84% |
| Friday | 67°F | Showers And Thunderstorms | 8 mph SW | 92% |
| Friday Night | 55°F | Showers And Thunderstorms | 5 mph W | 92% |
| Saturday | 65°F | Rain Showers Likely | 6 to 9 mph NW | 60% |
| Saturday Night | 43°F | Slight Chance Rain Showers | 8 mph NW | 20% |
| Sunday | 60°F | Slight Chance Rain Showers then Mostly Sunny | 9 mph W | 17% |
| Sunday Night | 40°F | Partly Cloudy then Slight Chance Light Rain | 6 to 9 mph W | 15% |
| Monday | 59°F | Chance Light Rain | 9 to 14 mph NW | 26% |
| Monday Night | 39°F | Chance Light Rain | 8 to 12 mph W | 26% |
| Tuesday | 60°F | Slight Chance Light Rain then Mostly Sunny | 15 mph W | 20% |
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 Nov 4, 2026.