Thomaston, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thomaston, a village in Nassau County, New York.
This Afternoon
72°F
Mostly Sunny
Mostly sunny. High near 72, with temperatures falling to around 70 in the afternoon. East wind around 8 mph.
7-day forecast for Thomaston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Mostly Sunny | 8 mph E | 0% |
| Tonight | 60°F | Mostly Cloudy | 7 mph SE | 4% |
| Sunday | 71°F | Rain | 7 to 10 mph SE | 87% |
| Sunday Night | 59°F | Rain | 7 to 13 mph SE | 86% |
| Monday | 69°F | Chance Light Rain then Mostly Cloudy | 10 to 15 mph NE | 39% |
| Monday Night | 55°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 14 mph NE | 22% |
| 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 | 17 to 21 mph NE | 22% |
| Wednesday Night | 54°F | Chance Rain Showers | 18 to 22 mph NE | 32% |
| Thursday | 65°F | Chance Rain Showers | 18 to 22 mph NE | 32% |
| Thursday Night | 53°F | Chance Rain Showers | 17 to 22 mph NE | 39% |
| Friday | 66°F | Chance Rain Showers | 16 to 20 mph N | 39% |
| Friday Night | 54°F | Chance Rain Showers | 17 to 21 mph N | 34% |
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
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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 Sep 19, 2026.