Gilgo, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gilgo, a community in Suffolk County, New York.
This Afternoon
81°F
Sunny
Sunny. High near 81, with temperatures falling to around 79 in the afternoon. North wind around 6 mph.
7-day forecast for Gilgo
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Sunny | 6 mph N | 0% |
| Tonight | 59°F | Partly Cloudy | 6 to 14 mph N | 0% |
| Saturday | 70°F | Mostly Sunny | 9 to 14 mph E | 1% |
| Saturday Night | 62°F | Mostly Cloudy | 9 mph SE | 3% |
| Sunday | 72°F | Showers And Thunderstorms Likely | 10 to 16 mph S | 71% |
| Sunday Night | 61°F | Showers And Thunderstorms | 9 to 14 mph W | 90% |
| Monday | 69°F | Rain Showers Likely | 14 to 17 mph NE | 61% |
| Monday Night | 59°F | Chance Rain Showers | 14 to 20 mph NE | 29% |
| Tuesday | 65°F | Chance Rain Showers | 23 mph NE | 28% |
| Tuesday Night | 57°F | Chance Rain Showers then Mostly Cloudy | 24 mph NE | 28% |
| Wednesday | 65°F | Slight Chance Rain Showers | 24 to 28 mph NE | 19% |
| Wednesday Night | 57°F | Chance Rain Showers | 24 to 28 mph NE | 37% |
| Thursday | 65°F | Chance Rain Showers | 22 to 26 mph NE | 37% |
| Thursday Night | 57°F | Chance Rain Showers | 16 to 22 mph NE | 36% |
Forecast source: National Weather Service (api.weather.gov) for Gilgo (40.636, -73.384). Updated through the day.
Growing snapshot for Gilgo
Last spring frost
Apr 3
First fall frost
Nov 11
Growing season
221 days
Hardiness zone
7b
More local growing data for Gilgo: nearby ZIP 11702 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Wantagh Cedar Creek, Ny (6.5 mi from Gilgo). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.