Northville, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Northville, a community in Suffolk County, New York.
This Afternoon
69°F
Mostly Sunny
Mostly sunny. High near 69, with temperatures falling to around 66 in the afternoon. East wind 7 to 10 mph.
7-day forecast for Northville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Mostly Sunny | 7 to 10 mph E | 0% |
| Tonight | 56°F | Partly Cloudy | 6 mph SE | 1% |
| Sunday | 70°F | Rain | 6 to 10 mph SE | 84% |
| Sunday Night | 57°F | Rain | 6 to 12 mph E | 87% |
| Monday | 68°F | Chance Light Rain | 10 to 17 mph NE | 45% |
| Monday Night | 55°F | Mostly Cloudy then Slight Chance Rain Showers | 9 to 15 mph NE | 22% |
| Tuesday | 65°F | Slight Chance Rain Showers | 16 to 20 mph NE | 24% |
| Tuesday Night | 54°F | Slight Chance Rain Showers | 17 to 22 mph NE | 24% |
| Wednesday | 66°F | Slight Chance Rain Showers then Partly Sunny | 25 mph NE | 16% |
| Wednesday Night | 54°F | Chance Rain Showers | 22 to 25 mph NE | 32% |
| Thursday | 66°F | Chance Rain Showers | 26 mph NE | 34% |
| Thursday Night | 54°F | Chance Rain Showers | 20 to 24 mph NE | 40% |
| Friday | 66°F | Chance Rain Showers | 22 to 25 mph N | 36% |
| Friday Night | 54°F | Chance Rain Showers | 20 to 24 mph N | 36% |
Forecast source: National Weather Service (api.weather.gov) for Northville (40.976, -72.630). Updated through the day.
Growing snapshot for Northville
Last spring frost
Apr 6
First fall frost
Nov 9
Growing season
215 days
Hardiness zone
7a
More local growing data for Northville: nearby ZIP 11931 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Riverhead Rsch Farm, Ny (5.3 mi from Northville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.