McLean, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for McLean, a community in Tompkins County, New York.
This Afternoon
71°F
Mostly Sunny
Mostly sunny, with a high near 71. North wind around 10 mph.
7-day forecast for McLean
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Mostly Sunny | 10 mph N | 0% |
| Tonight | 44°F | Mostly Cloudy | 1 to 8 mph NE | 0% |
| Saturday | 66°F | Mostly Sunny | 2 mph E | 1% |
| Saturday Night | 51°F | Mostly Cloudy then Rain Showers Likely | 1 to 9 mph SE | 61% |
| Sunday | 64°F | Rain Showers | 6 to 9 mph S | 96% |
| Sunday Night | 47°F | Rain Showers Likely then Patchy Fog | 6 mph N | 72% |
| Monday | 63°F | Patchy Fog then Partly Sunny | 5 to 8 mph N | 3% |
| Monday Night | 44°F | Mostly Cloudy then Chance Rain Showers | 6 mph NE | 28% |
| Tuesday | 60°F | Chance Rain Showers | 7 mph E | 31% |
| Tuesday Night | 43°F | Chance Rain Showers | 7 mph E | 27% |
| Wednesday | 59°F | Chance Rain Showers | 9 mph E | 25% |
| Wednesday Night | 44°F | Slight Chance Showers And Thunderstorms | 5 to 8 mph E | 34% |
| Thursday | 60°F | Chance Showers And Thunderstorms | 7 mph E | 34% |
| Thursday Night | 46°F | Chance Showers And Thunderstorms | 2 to 6 mph NE | 32% |
Forecast source: National Weather Service (api.weather.gov) for McLean (42.549, -76.292). Updated through the day.
Growing snapshot for McLean
Last spring frost
May 7
First fall frost
Oct 8
Growing season
154 days
Hardiness zone
5b
More local growing data for McLean: nearby ZIP 13102 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Freeville 1 Ne, Ny (2.9 mi from McLean). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.