Northwest Harbor, NY Weather & Growing Conditions
Today
81°F
Mostly Sunny
Mostly sunny. High near 81, with temperatures falling to around 79 in the afternoon. Northeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Mostly Sunny | 5 mph NE | 0% |
| Tonight | 66°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph E | 18% |
| Wednesday | 82°F | Slight Chance Rain Showers then Mostly Sunny | 2 to 6 mph NW | 15% |
| Wednesday Night | 71°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph S | 16% |
| Thursday | 85°F | Mostly Sunny | 5 to 10 mph SW | 9% |
| Thursday Night | 73°F | Mostly Clear | 5 to 9 mph SW | 11% |
| Friday | 86°F | Sunny | 5 to 9 mph SW | 6% |
| Friday Night | 72°F | Slight Chance Showers And Thunderstorms | 3 to 8 mph SW | 18% |
| Saturday | 84°F | Mostly Sunny | 3 to 9 mph SW | 10% |
| Saturday Night | 72°F | Slight Chance Showers And Thunderstorms | 3 to 8 mph SW | 20% |
| Sunday | 84°F | Mostly Sunny | 3 to 8 mph SW | 12% |
| Sunday Night | 72°F | Mostly Clear | 3 to 7 mph SW | 7% |
| Monday | 87°F | Sunny | 5 to 9 mph SW | 6% |
| Monday Night | 71°F | Mostly Clear | 5 to 8 mph W | 12% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Northwest Harbor, NY
Last spring frost
Apr 23
First fall frost
Oct 24
Growing season
182 days
Hardiness zone
7b
Explore more for Northwest Harbor, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Bridgehampton, Ny (5.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.