Riverside, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Riverside, a community in Suffolk County, New York.
Today
83°F
Mostly Sunny
Mostly sunny, with a high near 83. East wind around 5 mph.
7-day forecast for Riverside
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Sunny | 5 mph E | 0% |
| Tonight | 64°F | Mostly Cloudy | 3 mph NE | 12% |
| Wednesday | 83°F | Partly Sunny | 5 mph SE | 10% |
| Wednesday Night | 72°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph S | 18% |
| Thursday | 87°F | Mostly Sunny | 5 to 10 mph SW | 10% |
| Thursday Night | 73°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 5 to 9 mph SW | 16% |
| Friday | 88°F | Sunny | 5 to 9 mph SW | 11% |
| Friday Night | 73°F | Slight Chance Showers And Thunderstorms | 3 to 8 mph SW | 20% |
| Saturday | 87°F | Mostly Sunny then Slight Chance Rain Showers | 3 to 8 mph SW | 17% |
| Saturday Night | 72°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph SW | 23% |
| Sunday | 87°F | Mostly Sunny | 5 to 9 mph SW | 14% |
| Sunday Night | 73°F | Mostly Clear | 7 mph SW | 9% |
| Monday | 89°F | Sunny | 5 to 10 mph SW | 7% |
| Monday Night | 72°F | Slight Chance Rain Showers | 5 to 8 mph W | 15% |
Forecast source: National Weather Service (api.weather.gov) for Riverside (40.905, -72.672). Updated through the day.
Growing snapshot for Riverside
Last spring frost
Apr 6
First fall frost
Nov 9
Growing season
215 days
Hardiness zone
7a
More local growing data for Riverside: nearby ZIP 11901 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Riverhead Rsch Farm, Ny (4.3 mi from Riverside). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.