North Great River, NY Weather & Growing Conditions
This Afternoon
70°F
Mostly Sunny
Mostly sunny. High near 70, with temperatures falling to around 67 in the afternoon. East wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Mostly Sunny | 9 mph E | 0% |
| Tonight | 55°F | Mostly Cloudy | 8 mph SE | 2% |
| Sunday | 71°F | Rain | 7 to 12 mph SE | 79% |
| Sunday Night | 57°F | Rain | 6 to 12 mph NE | 86% |
| Monday | 68°F | Chance Light Rain | 10 to 15 mph NE | 45% |
| Monday Night | 54°F | Mostly Cloudy then Slight Chance Rain Showers | 7 to 13 mph NE | 20% |
| Tuesday | 65°F | Chance Rain Showers | 16 mph NE | 26% |
| Tuesday Night | 53°F | Chance Rain Showers | 14 to 17 mph NE | 26% |
| Wednesday | 66°F | Slight Chance Rain Showers | 20 mph NE | 21% |
| Wednesday Night | 53°F | Chance Rain Showers | 20 mph NE | 33% |
| Thursday | 65°F | Chance Rain Showers | 22 mph NE | 34% |
| Thursday Night | 52°F | Chance Rain Showers | 15 to 18 mph NE | 40% |
| Friday | 66°F | Chance Rain Showers | 20 mph N | 37% |
| Friday Night | 52°F | Chance Rain Showers | 20 mph N | 37% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for North Great River, NY
Last spring frost
Apr 10
First fall frost
Nov 2
Growing season
207 days
Hardiness zone
7b
Explore more for North Great River, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Islip Li Macarthur Ap, Ny (4.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.