Seaford, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seaford, a community in Nassau County, New York.
Today
71°F
Partly Sunny
Partly sunny. High near 71, with temperatures falling to around 69 in the afternoon. East wind around 12 mph.
7-day forecast for Seaford
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Partly Sunny | 12 mph E | 0% |
| Tonight | 59°F | Mostly Cloudy | 9 mph SE | 2% |
| Sunday | 73°F | Rain | 8 to 14 mph SE | 79% |
| Sunday Night | 59°F | Rain | 7 to 12 mph E | 85% |
| Monday | 70°F | Chance Light Rain | 10 to 15 mph NE | 48% |
| Monday Night | 56°F | Slight Chance Light Rain then Slight Chance Rain Showers | 8 to 14 mph NE | 20% |
| Tuesday | 67°F | Chance Rain Showers | 14 to 17 mph NE | 26% |
| Tuesday Night | 54°F | Chance Rain Showers | 17 mph NE | 26% |
| Wednesday | 68°F | Slight Chance Rain Showers | 17 to 22 mph NE | 23% |
| Wednesday Night | 54°F | Chance Rain Showers | 21 mph NE | 33% |
| Thursday | 67°F | Chance Rain Showers | 20 to 23 mph NE | 33% |
| Thursday Night | 53°F | Chance Rain Showers | 16 to 21 mph NE | 39% |
| Friday | 68°F | Chance Rain Showers | 18 mph N | 37% |
| Friday Night | 54°F | Chance Rain Showers | 18 mph N | 36% |
Forecast source: National Weather Service (api.weather.gov) for Seaford (40.666, -73.493). Updated through the day.
Growing snapshot for Seaford
Last spring frost
Apr 3
First fall frost
Nov 11
Growing season
221 days
Hardiness zone
7b
More local growing data for Seaford: nearby ZIP 11783 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Wantagh Cedar Creek, Ny (1.8 mi from Seaford). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.