Brightwaters, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brightwaters, a village in Suffolk County, New York.
Tonight
58°F
Mostly Cloudy
Mostly cloudy, with a low around 58. Southeast wind around 7 mph.
7-day forecast for Brightwaters
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Mostly Cloudy | 7 mph SE | 2% |
| Sunday | 72°F | Rain Showers Likely then Rain | 7 to 14 mph SE | 78% |
| Sunday Night | 58°F | Rain then Rain Showers | 8 to 13 mph SW | 81% |
| Monday | 69°F | Chance Rain Showers | 10 to 15 mph NE | 41% |
| Monday Night | 55°F | Chance Rain Showers | 8 to 13 mph NE | 28% |
| Tuesday | 67°F | Chance Rain Showers | 16 mph NE | 28% |
| Tuesday Night | 55°F | Slight Chance Rain Showers then Mostly Cloudy | 15 to 20 mph NE | 24% |
| Wednesday | 65°F | Slight Chance Rain Showers | 20 to 23 mph NE | 17% |
| Wednesday Night | 56°F | Slight Chance Rain Showers | 23 mph NE | 23% |
| Thursday | 65°F | Chance Rain Showers | 21 to 24 mph NE | 34% |
| Thursday Night | 54°F | Chance Rain Showers | 21 to 25 mph NE | 40% |
| Friday | 65°F | Chance Rain Showers | 22 to 25 mph N | 42% |
| Friday Night | 56°F | Chance Rain Showers | 22 mph N | 42% |
| Saturday | 67°F | Chance Rain Showers | 16 to 22 mph N | 28% |
Forecast source: National Weather Service (api.weather.gov) for Brightwaters (40.716, -73.262). Updated through the day.
Growing snapshot for Brightwaters
Last spring frost
Apr 6
First fall frost
Nov 6
Growing season
213 days
Hardiness zone
7b
More local growing data for Brightwaters: nearby ZIP 11718 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Farmingdale Ap, Ny (8.2 mi from Brightwaters). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.