Harman US

Locust Valley, NY Weather & Growing Conditions

Tonight
59°F
Mostly Cloudy
Mostly cloudy, with a low around 59. Southeast wind around 8 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 59°F Mostly Cloudy 8 mph SE 4%
Sunday 71°F Rain Showers then Rain 7 to 12 mph SE 85%
Sunday Night 58°F Rain then Rain Showers Likely 8 to 14 mph W 84%
Monday 69°F Chance Rain Showers 9 to 14 mph NE 28%
Monday Night 55°F Chance Rain Showers 9 to 14 mph NE 27%
Tuesday 65°F Chance Rain Showers 14 mph NE 27%
Tuesday Night 54°F Slight Chance Rain Showers then Mostly Cloudy 14 to 18 mph NE 24%
Wednesday 66°F Mostly Cloudy 21 mph NE 14%
Wednesday Night 54°F Slight Chance Rain Showers 22 mph NE 20%
Thursday 65°F Chance Rain Showers 21 mph NE 31%
Thursday Night 53°F Chance Rain Showers 23 mph NE 36%
Friday 65°F Chance Rain Showers 18 to 23 mph N 40%
Friday Night 54°F Chance Rain Showers 22 mph N 39%
Saturday 68°F Chance Rain Showers 15 to 21 mph N 28%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Locust Valley, NY

Last spring frost
Apr 2
First fall frost
Nov 12
Growing season
224 days
Hardiness zone
7b

Explore more for Locust Valley, NY: full frost dates · planting calendar · New York frost dates

Climate data from the nearest NOAA station, Mineola, Ny (10.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.