New Suffolk, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Suffolk, a community in Suffolk County, New York.
This Afternoon
67°F
Mostly Sunny
Mostly sunny, with a high near 67. East wind around 8 mph.
7-day forecast for New Suffolk
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Mostly Sunny | 8 mph E | 0% |
| Tonight | 57°F | Mostly Cloudy | 6 mph SE | 1% |
| Sunday | 71°F | Rain Showers Likely then Rain | 6 to 12 mph SE | 82% |
| Sunday Night | 58°F | Rain then Rain Showers | 7 to 14 mph S | 89% |
| Monday | 68°F | Chance Rain Showers | 9 to 15 mph NE | 45% |
| Monday Night | 56°F | Slight Chance Rain Showers | 9 to 14 mph NE | 17% |
| Tuesday | 66°F | Chance Rain Showers | 17 mph NE | 26% |
| Tuesday Night | 55°F | Slight Chance Rain Showers then Mostly Cloudy | 15 to 18 mph NE | 22% |
| Wednesday | 66°F | Slight Chance Rain Showers | 20 to 24 mph NE | 15% |
| Wednesday Night | 55°F | Slight Chance Rain Showers | 20 to 23 mph NE | 24% |
| Thursday | 66°F | Chance Rain Showers | 22 to 25 mph NE | 33% |
| Thursday Night | 55°F | Chance Rain Showers | 21 to 24 mph NE | 42% |
| Friday | 66°F | Chance Rain Showers | 25 mph NE | 45% |
| Friday Night | 55°F | Chance Rain Showers | 20 to 24 mph N | 45% |
Forecast source: National Weather Service (api.weather.gov) for New Suffolk (40.997, -72.477). Updated through the day.
Growing snapshot for New Suffolk
Last spring frost
Apr 19
First fall frost
Nov 1
Growing season
196 days
Hardiness zone
7a
More local growing data for New Suffolk: nearby ZIP 11956 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, Mattituck, Ny (2 mi from New Suffolk). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.