Thomaston, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thomaston, a village in Nassau County, New York.
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. East wind 3 to 7 mph.
7-day forecast for Thomaston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 3 to 7 mph E | 0% |
| Tonight | 68°F | Mostly Cloudy | 2 to 7 mph SE | 3% |
| Wednesday | 84°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 2 to 9 mph E | 24% |
| Wednesday Night | 73°F | Slight Chance Rain Showers | 5 to 9 mph S | 23% |
| Thursday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 12 mph SW | 33% |
| Thursday Night | 75°F | Chance Showers And Thunderstorms then Partly Cloudy | 6 to 12 mph SW | 35% |
| Friday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 6 to 9 mph SW | 36% |
| Friday Night | 74°F | Chance Showers And Thunderstorms | 5 to 9 mph SW | 36% |
| Saturday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 9 mph SW | 31% |
| Saturday Night | 74°F | Chance Showers And Thunderstorms | 8 mph SW | 31% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 to 9 mph W | 15% |
| Sunday Night | 75°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 6 to 9 mph SW | 15% |
| Monday | 92°F | Sunny | 6 to 12 mph W | 11% |
| Monday Night | 74°F | Slight Chance Rain Showers | 7 to 12 mph W | 15% |
Forecast source: National Weather Service (api.weather.gov) for Thomaston (40.788, -73.715). Updated through the day.
Growing snapshot for Thomaston
Last spring frost
Apr 2
First fall frost
Nov 12
Growing season
224 days
Hardiness zone
7b
More local growing data for Thomaston: nearby ZIP 11020 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
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Garden City South
Climate data from the nearest NOAA station, Mineola, Ny (5.7 mi from Thomaston). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.