Fishers Island, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fishers Island, a community in Suffolk County, New York.
Overnight
58°F
Mostly Cloudy
Mostly cloudy. Low around 58, with temperatures rising to around 60 overnight. Northeast wind around 13 mph.
7-day forecast for Fishers Island
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Mostly Cloudy | 13 mph NE | 0% |
| Saturday | 67°F | Mostly Sunny | 9 to 13 mph E | 0% |
| Saturday Night | 59°F | Partly Cloudy | 6 to 9 mph E | 0% |
| Sunday | 68°F | Rain | 7 to 12 mph SE | 88% |
| Sunday Night | 60°F | Rain | 9 to 13 mph E | 88% |
| Monday | 66°F | Chance Light Rain | 13 to 20 mph NE | 45% |
| Monday Night | 56°F | Mostly Cloudy | 13 to 18 mph NE | 8% |
| Tuesday | 62°F | Mostly Cloudy | 18 to 22 mph NE | 10% |
| Tuesday Night | 56°F | Mostly Cloudy | 20 to 23 mph NE | 8% |
| Wednesday | 63°F | Partly Sunny | 24 to 30 mph NE | 6% |
| Wednesday Night | 56°F | Chance Rain Showers | 29 mph NE | 27% |
| Thursday | 63°F | Chance Rain Showers | 29 to 32 mph NE | 35% |
| Thursday Night | 57°F | Chance Rain Showers | 25 to 29 mph NE | 38% |
| Friday | 64°F | Chance Rain Showers | 26 to 30 mph N | 34% |
Forecast source: National Weather Service (api.weather.gov) for Fishers Island (41.268, -71.993). Updated through the day.
Growing snapshot for Fishers Island
Last spring frost
Apr 16
First fall frost
Oct 28
Growing season
194 days
Hardiness zone
7a
More local growing data for Fishers Island: nearby ZIP 06390 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Groton New London Ap, Ct (6.5 mi from Fishers Island). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.