Marathon, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marathon, a village in Cortland County, New York.
This Afternoon
68°F
Mostly Cloudy
Mostly cloudy, with a high near 68. Southeast wind around 3 mph.
7-day forecast for Marathon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Mostly Cloudy | 3 mph SE | 0% |
| Tonight | 53°F | Mostly Cloudy then Rain Showers | 1 to 8 mph SE | 95% |
| Sunday | 66°F | Showers And Thunderstorms | 6 to 10 mph S | 99% |
| Sunday Night | 43°F | Mostly Cloudy | 5 to 9 mph N | 4% |
| Monday | 64°F | Partly Sunny | 7 mph N | 0% |
| Monday Night | 41°F | Mostly Cloudy then Slight Chance Rain Showers | 2 to 6 mph NE | 16% |
| Tuesday | 63°F | Slight Chance Rain Showers then Mostly Cloudy | 2 to 6 mph E | 16% |
| Tuesday Night | 41°F | Mostly Cloudy | 2 to 6 mph E | 6% |
| Wednesday | 63°F | Partly Sunny | 5 to 9 mph E | 3% |
| Wednesday Night | 40°F | Mostly Cloudy | 3 to 7 mph E | 10% |
| Thursday | 61°F | Partly Sunny | 3 to 7 mph E | 10% |
| Thursday Night | 41°F | Mostly Cloudy then Slight Chance Rain Showers | 1 to 6 mph NE | 21% |
| Friday | 64°F | Chance Rain Showers | 2 to 8 mph NE | 25% |
| Friday Night | 43°F | Chance Rain Showers | 3 to 8 mph N | 25% |
Forecast source: National Weather Service (api.weather.gov) for Marathon (42.445, -76.036). Updated through the day.
Growing snapshot for Marathon
Last spring frost
May 4
First fall frost
Oct 16
Growing season
163 days
Hardiness zone
5b
More local growing data for Marathon: nearby ZIP 13803 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Whitney Pt Dam, Ny (9.2 mi from Marathon). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.