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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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.