Mastic, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mastic, a community in Suffolk County, New York.
Overnight
63°F
Partly Cloudy
Partly cloudy, with a low around 63. Northeast wind around 2 mph.
7-day forecast for Mastic
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Partly Cloudy | 2 mph NE | 0% |
| Tuesday | 82°F | Mostly Sunny | 2 to 6 mph NE | 0% |
| Tuesday Night | 64°F | Mostly Cloudy | 5 mph E | 10% |
| Wednesday | 82°F | Partly Sunny | 2 to 7 mph E | 11% |
| Wednesday Night | 72°F | Mostly Cloudy then Slight Chance Rain Showers | 6 mph S | 20% |
| Thursday | 85°F | Mostly Sunny | 5 to 12 mph SW | 10% |
| Thursday Night | 73°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 6 to 10 mph SW | 16% |
| Friday | 87°F | Sunny | 6 to 10 mph SW | 11% |
| Friday Night | 73°F | Chance Showers And Thunderstorms | 5 to 9 mph SW | 26% |
| Saturday | 86°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 10 mph SW | 16% |
| Saturday Night | 72°F | Slight Chance Showers And Thunderstorms | 5 to 9 mph SW | 24% |
| Sunday | 86°F | Mostly Sunny | 5 to 10 mph SW | 14% |
| Sunday Night | 72°F | Mostly Clear | 5 to 9 mph SW | 9% |
| Monday | 88°F | Sunny | 5 to 12 mph SW | 7% |
Forecast source: National Weather Service (api.weather.gov) for Mastic (40.810, -72.848). Updated through the day.
Growing snapshot for Mastic
Last spring frost
Apr 18
First fall frost
Oct 28
Growing season
193 days
Hardiness zone
7a
More local growing data for Mastic: nearby ZIP 11950 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Shirley Brookhaven Ap, Ny (1.6 mi from Mastic). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.