Northwest Harbor, NY Weather & Growing Conditions
Overnight
56°F
Mostly Cloudy
Mostly cloudy, with a low around 56. Northeast wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Mostly Cloudy | 9 mph NE | 0% |
| Saturday | 69°F | Mostly Sunny | 6 to 10 mph E | 0% |
| Saturday Night | 55°F | Partly Cloudy | 6 mph E | 1% |
| Sunday | 70°F | Rain | 5 to 8 mph SE | 82% |
| Sunday Night | 58°F | Rain | 5 to 12 mph E | 87% |
| Monday | 68°F | Chance Light Rain | 9 to 14 mph NE | 54% |
| Monday Night | 55°F | Mostly Cloudy then Slight Chance Rain Showers | 8 to 13 mph NE | 19% |
| Tuesday | 66°F | Slight Chance Rain Showers | 15 mph NE | 22% |
| Tuesday Night | 55°F | Slight Chance Rain Showers | 16 mph NE | 22% |
| Wednesday | 67°F | Slight Chance Rain Showers then Partly Sunny | 17 to 21 mph NE | 15% |
| Wednesday Night | 55°F | Chance Rain Showers | 21 mph NE | 31% |
| Thursday | 67°F | Chance Rain Showers | 20 to 23 mph NE | 36% |
| Thursday Night | 55°F | Chance Rain Showers | 15 to 21 mph NE | 41% |
| Friday | 67°F | Chance Rain Showers | 21 mph NE | 35% |
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 Sep 19, 2026.