Marathon, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marathon, a village in Cortland County, New York.
Tonight
47°F
Partly Cloudy then Areas Of Fog
Areas of fog after 4am. Partly cloudy, with a low around 47. Southeast wind around 3 mph.
7-day forecast for Marathon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Partly Cloudy then Areas Of Fog | 3 mph SE | 4% |
| Wednesday | 72°F | Areas Of Fog then Mostly Sunny | 3 to 9 mph S | 3% |
| Wednesday Night | 57°F | Mostly Cloudy then Rain Showers Likely | 6 to 9 mph S | 59% |
| Thursday | 70°F | Rain Showers | 7 to 10 mph S | 87% |
| Thursday Night | 49°F | Slight Chance Rain Showers | 0 to 6 mph SW | 24% |
| Friday | 65°F | Chance Rain Showers | 0 to 3 mph W | 38% |
| Friday Night | 43°F | Chance Light Rain | 2 mph NW | 34% |
| Saturday | 57°F | Chance Light Rain | 2 to 7 mph NW | 37% |
| Saturday Night | 36°F | Chance Light Rain | 6 mph NW | 37% |
| Sunday | 54°F | Slight Chance Light Rain then Partly Sunny | 5 to 8 mph W | 17% |
| Sunday Night | 32°F | Slight Chance Light Rain | 6 mph W | 19% |
| Monday | 53°F | Chance Light Rain | 6 to 13 mph NW | 34% |
| Monday Night | 31°F | Chance Light Rain | 3 to 7 mph W | 34% |
| Tuesday | 56°F | Slight Chance Light Rain | 6 to 13 mph SW | 21% |
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 Nov 4, 2026.