Hewlett, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hewlett, a community in Nassau County, New York.
Tonight
60°F
Partly Cloudy
Partly cloudy, with a low around 60. North wind 9 to 13 mph.
7-day forecast for Hewlett
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°F | Partly Cloudy | 9 to 13 mph N | 0% |
| Saturday | 71°F | Mostly Sunny | 10 to 14 mph E | 1% |
| Saturday Night | 63°F | Mostly Cloudy | 6 to 10 mph SE | 7% |
| Sunday | 73°F | Showers And Thunderstorms | 10 to 17 mph S | 75% |
| Sunday Night | 62°F | Showers And Thunderstorms | 9 to 15 mph W | 89% |
| Monday | 70°F | Chance Rain Showers | 14 mph NE | 52% |
| Monday Night | 58°F | Chance Rain Showers | 10 to 15 mph NE | 30% |
| Tuesday | 67°F | Chance Rain Showers | 15 to 18 mph NE | 30% |
| Tuesday Night | 56°F | Chance Rain Showers | 17 mph NE | 30% |
| Wednesday | 67°F | Slight Chance Rain Showers | 17 to 21 mph NE | 21% |
| Wednesday Night | 56°F | Chance Rain Showers | 16 to 20 mph NE | 38% |
| Thursday | 66°F | Chance Rain Showers | 20 mph NE | 38% |
| Thursday Night | 56°F | Chance Showers And Thunderstorms | 13 to 16 mph NE | 35% |
| Friday | 70°F | Chance Rain Showers | 15 mph N | 35% |
Forecast source: National Weather Service (api.weather.gov) for Hewlett (40.642, -73.694). Updated through the day.
Growing snapshot for Hewlett
Last spring frost
Apr 7
First fall frost
Nov 8
Growing season
212 days
Hardiness zone
7b
More local growing data for Hewlett: nearby ZIP 11557 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Oceanside, Ny (3.5 mi from Hewlett). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.