Old Westbury, NY Weather & Growing Conditions
Overnight
58°F
Mostly Cloudy
Mostly cloudy. Low around 58, with temperatures rising to around 60 overnight. Northeast wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Mostly Cloudy | 10 mph NE | 0% |
| Saturday | 71°F | Partly Sunny | 10 mph E | 0% |
| Saturday Night | 58°F | Mostly Cloudy | 8 mph SE | 3% |
| Sunday | 71°F | Rain | 7 to 12 mph SE | 85% |
| Sunday Night | 58°F | Rain | 7 to 12 mph SE | 85% |
| Monday | 69°F | Chance Light Rain then Mostly Cloudy | 10 to 15 mph NE | 42% |
| Monday Night | 55°F | Mostly Cloudy then Slight Chance Rain Showers | 8 to 14 mph NE | 20% |
| Tuesday | 65°F | Chance Rain Showers | 16 mph NE | 26% |
| Tuesday Night | 54°F | Chance Rain Showers | 17 mph NE | 25% |
| Wednesday | 66°F | Slight Chance Rain Showers | 21 mph NE | 22% |
| Wednesday Night | 54°F | Chance Rain Showers | 18 to 22 mph NE | 33% |
| Thursday | 65°F | Chance Rain Showers | 22 mph NE | 33% |
| Thursday Night | 53°F | Chance Rain Showers | 17 to 22 mph NE | 38% |
| Friday | 66°F | Chance Rain Showers | 16 to 20 mph N | 38% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Old Westbury, NY
Last spring frost
Apr 2
First fall frost
Nov 12
Growing season
224 days
Hardiness zone
7b
Explore more for Old Westbury, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Mineola, Ny (3.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.