Riverhead, NY Weather & Growing Conditions
This Afternoon
80°F
Sunny
Sunny. High near 80, with temperatures falling to around 78 in the afternoon. Northwest wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Sunny | 7 mph NW | 0% |
| Tonight | 57°F | Partly Cloudy | 2 to 9 mph N | 0% |
| Saturday | 68°F | Mostly Sunny | 10 mph E | 0% |
| Saturday Night | 55°F | Mostly Cloudy | 2 to 7 mph E | 1% |
| Sunday | 70°F | Showers And Thunderstorms | 3 to 10 mph SE | 76% |
| Sunday Night | 58°F | Showers And Thunderstorms | 6 to 12 mph SE | 90% |
| Monday | 68°F | Rain Showers Likely | 12 to 15 mph NE | 66% |
| Monday Night | 55°F | Chance Rain Showers | 10 to 17 mph NE | 27% |
| Tuesday | 65°F | Chance Rain Showers | 17 to 21 mph NE | 25% |
| Tuesday Night | 55°F | Chance Rain Showers then Mostly Cloudy | 17 to 21 mph NE | 25% |
| Wednesday | 66°F | Mostly Cloudy then Slight Chance Rain Showers | 21 to 24 mph NE | 15% |
| Wednesday Night | 55°F | Chance Rain Showers | 22 mph NE | 32% |
| Thursday | 65°F | Chance Rain Showers | 21 to 24 mph NE | 35% |
| Thursday Night | 54°F | Chance Rain Showers | 14 to 20 mph NE | 37% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Riverhead, NY
Last spring frost
Apr 6
First fall frost
Nov 9
Growing season
215 days
Hardiness zone
7a
Explore more for Riverhead, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Riverhead Rsch Farm, Ny (4.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.