Hewlett, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hewlett, a community in Nassau County, New York.
Overnight
67°F
Partly Cloudy
Partly cloudy. Low around 67, with temperatures rising to around 69 overnight. North wind around 7 mph.
7-day forecast for Hewlett
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 67°F | Partly Cloudy | 7 mph N | 0% |
| Tuesday | 82°F | Mostly Sunny | 3 to 7 mph E | 0% |
| Tuesday Night | 69°F | Mostly Cloudy | 2 to 6 mph E | 4% |
| Wednesday | 82°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 2 to 9 mph SE | 23% |
| Wednesday Night | 73°F | Slight Chance Showers And Thunderstorms | 5 to 8 mph S | 18% |
| Thursday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 14 mph S | 23% |
| Thursday Night | 75°F | Chance Showers And Thunderstorms then Partly Cloudy | 6 to 13 mph SW | 30% |
| Friday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 6 to 10 mph SW | 25% |
| Friday Night | 74°F | Chance Showers And Thunderstorms | 5 to 9 mph SW | 35% |
| Saturday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 9 mph SW | 27% |
| Saturday Night | 73°F | Chance Showers And Thunderstorms | 5 to 8 mph SW | 30% |
| Sunday | 87°F | Mostly Sunny | 5 to 9 mph SW | 13% |
| Sunday Night | 74°F | Mostly Clear | 8 mph SW | 13% |
| Monday | 90°F | Sunny | 6 to 12 mph SW | 10% |
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 Aug 4, 2026.