South Lansing, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Lansing, a community in Tompkins County, New York.
This Afternoon
70°F
Mostly Sunny
Mostly sunny, with a high near 70. North wind around 10 mph.
7-day forecast for South Lansing
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Mostly Sunny | 10 mph N | 0% |
| Tonight | 47°F | Mostly Cloudy | 2 to 9 mph N | 0% |
| Saturday | 66°F | Mostly Sunny | 2 mph SE | 1% |
| Saturday Night | 54°F | Mostly Cloudy then Rain Showers Likely | 1 to 10 mph SE | 63% |
| Sunday | 65°F | Rain Showers | 7 to 10 mph S | 95% |
| Sunday Night | 50°F | Rain Showers Likely | 8 mph N | 64% |
| Monday | 63°F | Partly Sunny | 8 mph N | 3% |
| Monday Night | 47°F | Mostly Cloudy then Chance Rain Showers | 3 to 7 mph NE | 29% |
| Tuesday | 61°F | Chance Rain Showers | 3 to 7 mph E | 32% |
| Tuesday Night | 45°F | Chance Rain Showers | 7 mph E | 30% |
| Wednesday | 59°F | Chance Rain Showers | 8 mph E | 26% |
| Wednesday Night | 46°F | Slight Chance Showers And Thunderstorms | 7 mph SE | 36% |
| Thursday | 60°F | Chance Showers And Thunderstorms | 7 mph E | 36% |
| Thursday Night | 48°F | Chance Showers And Thunderstorms | 6 mph NE | 30% |
Forecast source: National Weather Service (api.weather.gov) for South Lansing (42.532, -76.496). Updated through the day.
Growing snapshot for South Lansing
Last spring frost
May 11
First fall frost
Oct 3
Growing season
145 days
Hardiness zone
6a
More local growing data for South Lansing: nearby ZIP 14853 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Ithaca Cornell Univ, Ny (1.6 mi from South Lansing). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.