Riverhead, NY Weather & Growing Conditions
Overnight
52°F
Partly Cloudy
Partly cloudy, with a low around 52. Southwest wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Partly Cloudy | 3 mph SW | 3% |
| Wednesday | 70°F | Sunny | 3 to 10 mph SW | 3% |
| Wednesday Night | 57°F | Partly Cloudy | 6 mph SW | 1% |
| Thursday | 70°F | Mostly Cloudy then Slight Chance Rain Showers | 6 to 10 mph SW | 16% |
| Thursday Night | 59°F | Rain Showers | 5 to 8 mph SW | 84% |
| Friday | 67°F | Showers And Thunderstorms | 5 to 8 mph SW | 93% |
| Friday Night | 55°F | Showers And Thunderstorms | 5 mph SW | 93% |
| Saturday | 64°F | Rain Showers Likely | 5 to 9 mph NW | 65% |
| Saturday Night | 45°F | Slight Chance Rain Showers | 8 mph NW | 24% |
| Sunday | 59°F | Slight Chance Rain Showers then Mostly Sunny | 9 mph W | 15% |
| Sunday Night | 41°F | Partly Cloudy | 6 to 9 mph W | 13% |
| Monday | 58°F | Chance Light Rain | 9 to 14 mph NW | 30% |
| Monday Night | 41°F | Chance Light Rain | 13 mph W | 30% |
| Tuesday | 59°F | Slight Chance Light Rain then Mostly Sunny | 15 mph W | 23% |
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 Nov 4, 2026.