North Sea, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for North Sea, a community in Suffolk County, New York.
Today
80°F
Mostly Sunny
Mostly sunny. High near 80, with temperatures falling to around 78 in the afternoon. East wind around 5 mph.
7-day forecast for North Sea
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Mostly Sunny | 5 mph E | 0% |
| Tonight | 67°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph NE | 16% |
| Wednesday | 80°F | Partly Sunny | 2 to 7 mph SE | 14% |
| Wednesday Night | 72°F | Mostly Cloudy then Slight Chance Rain Showers | 6 mph S | 16% |
| Thursday | 84°F | Mostly Sunny | 5 to 10 mph SW | 9% |
| Thursday Night | 73°F | Mostly Clear | 6 to 10 mph SW | 13% |
| Friday | 84°F | Sunny | 6 to 10 mph SW | 9% |
| Friday Night | 73°F | Slight Chance Showers And Thunderstorms | 5 to 9 mph SW | 17% |
| Saturday | 84°F | Mostly Sunny | 5 to 9 mph SW | 14% |
| Saturday Night | 72°F | Slight Chance Showers And Thunderstorms | 3 to 8 mph SW | 21% |
| Sunday | 84°F | Mostly Sunny | 5 to 8 mph SW | 13% |
| Sunday Night | 73°F | Mostly Clear | 5 to 8 mph SW | 8% |
| Monday | 86°F | Sunny | 5 to 10 mph SW | 7% |
| Monday Night | 72°F | Mostly Clear | 5 to 9 mph W | 13% |
Forecast source: National Weather Service (api.weather.gov) for North Sea (40.932, -72.406). Updated through the day.
Growing snapshot for North Sea
Last spring frost
Apr 19
First fall frost
Nov 1
Growing season
196 days
Hardiness zone
7a
More local growing data for North Sea: nearby ZIP 11968 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Mattituck, Ny (7.4 mi from North Sea). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.