Lake Success, NY Weather & Growing Conditions
This Afternoon
71°F
Mostly Sunny
Mostly sunny. High near 71, with temperatures falling to around 69 in the afternoon. Southeast wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Mostly Sunny | 7 mph SE | 1% |
| Tonight | 61°F | Mostly Cloudy | 9 mph SE | 4% |
| Sunday | 72°F | Rain Showers then Rain | 8 to 14 mph SE | 82% |
| Sunday Night | 59°F | Rain then Rain Showers Likely | 8 to 15 mph W | 81% |
| Monday | 69°F | Chance Rain Showers | 10 to 15 mph NE | 31% |
| Monday Night | 56°F | Chance Rain Showers | 9 to 14 mph NE | 28% |
| Tuesday | 65°F | Chance Rain Showers | 15 mph NE | 28% |
| Tuesday Night | 54°F | Chance Rain Showers then Mostly Cloudy | 16 mph NE | 26% |
| Wednesday | 66°F | Mostly Cloudy then Slight Chance Rain Showers | 16 to 20 mph NE | 17% |
| Wednesday Night | 54°F | Slight Chance Rain Showers | 20 mph NE | 21% |
| Thursday | 65°F | Chance Rain Showers | 20 mph NE | 32% |
| Thursday Night | 54°F | Chance Rain Showers | 20 mph NE | 37% |
| Friday | 66°F | Chance Rain Showers | 17 to 21 mph N | 40% |
| Friday Night | 55°F | Chance Rain Showers | 21 mph N | 38% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lake Success, NY
Last spring frost
Apr 2
First fall frost
Nov 12
Growing season
224 days
Hardiness zone
7b
Explore more for Lake Success, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Mineola, Ny (5.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.