Locust Valley, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Locust Valley, a community in Nassau County, New York.
Overnight
53°F
Patchy Fog
Patchy fog after 1am. Mostly clear, with a low around 53. Southwest wind around 6 mph.
7-day forecast for Locust Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Patchy Fog | 6 mph SW | 3% |
| Wednesday | 71°F | Patchy Fog then Sunny | 5 to 10 mph SW | 3% |
| Wednesday Night | 59°F | Partly Cloudy | 6 to 9 mph S | 2% |
| Thursday | 71°F | Chance Rain Showers | 6 to 10 mph S | 33% |
| Thursday Night | 62°F | Rain Showers | 6 to 9 mph S | 83% |
| Friday | 67°F | Showers And Thunderstorms | 5 mph S | 87% |
| Friday Night | 56°F | Showers And Thunderstorms | 5 to 8 mph W | 87% |
| Saturday | 65°F | Chance Rain Showers | 9 mph NW | 54% |
| Saturday Night | 47°F | Slight Chance Rain Showers | 12 mph NW | 18% |
| Sunday | 60°F | Slight Chance Rain Showers then Mostly Sunny | 9 mph W | 17% |
| Sunday Night | 44°F | Partly Cloudy | 10 mph W | 14% |
| Monday | 59°F | Chance Light Rain | 12 to 16 mph NW | 25% |
| Monday Night | 44°F | Chance Light Rain | 14 mph W | 25% |
| Tuesday | 60°F | Slight Chance Light Rain then Mostly Sunny | 14 to 17 mph W | 18% |
Forecast source: National Weather Service (api.weather.gov) for Locust Valley (40.878, -73.589). Updated through the day.
Growing snapshot for Locust Valley
Last spring frost
Apr 2
First fall frost
Nov 12
Growing season
224 days
Hardiness zone
7b
More local growing data for Locust Valley: nearby ZIP 11560 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Mineola, Ny (10.3 mi from Locust Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.