Harman US

Farmingville, NY Weather & Growing Conditions

This Afternoon
69°F
Mostly Sunny
Mostly sunny. High near 69, with temperatures falling to around 66 in the afternoon. East wind around 9 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 69°F Mostly Sunny 9 mph E 0%
Tonight 55°F Partly Cloudy 5 to 8 mph SE 2%
Sunday 70°F Rain 6 to 12 mph SE 82%
Sunday Night 56°F Rain 6 to 12 mph E 87%
Monday 67°F Chance Light Rain 10 to 15 mph NE 45%
Monday Night 53°F Mostly Cloudy then Slight Chance Rain Showers 7 to 14 mph NE 22%
Tuesday 64°F Chance Rain Showers 17 mph NE 25%
Tuesday Night 52°F Chance Rain Showers 15 to 18 mph NE 25%
Wednesday 65°F Slight Chance Rain Showers 18 to 22 mph NE 19%
Wednesday Night 52°F Chance Rain Showers 21 mph NE 34%
Thursday 64°F Chance Rain Showers 23 mph NE 34%
Thursday Night 52°F Chance Rain Showers 16 to 20 mph NE 40%
Friday 65°F Chance Rain Showers 20 mph N 37%
Friday Night 52°F Chance Rain Showers 21 mph N 37%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Farmingville, NY

Last spring frost
Apr 10
First fall frost
Nov 2
Growing season
207 days
Hardiness zone
7b

Explore more for Farmingville, NY: full frost dates · planting calendar · New York frost dates

Climate data from the nearest NOAA station, Islip Li Macarthur Ap, Ny (4.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.