Marathon, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marathon, a village in Cortland County, New York.
Today
82°F
Areas Of Fog then Sunny
Areas of fog before 9am. Sunny, with a high near 82. Southwest wind 0 to 3 mph.
7-day forecast for Marathon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Areas Of Fog then Sunny | 0 to 3 mph SW | 0% |
| Tonight | 56°F | Mostly Clear | 2 mph SE | 0% |
| Wednesday | 84°F | Patchy Fog then Partly Sunny | 1 to 7 mph S | 1% |
| Wednesday Night | 64°F | Chance Showers And Thunderstorms | 2 to 6 mph S | 25% |
| Thursday | 85°F | Showers And Thunderstorms | 2 to 7 mph S | 81% |
| Thursday Night | 65°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 5 mph SW | 81% |
| Friday | 85°F | Showers And Thunderstorms | 1 to 6 mph SW | 76% |
| Friday Night | 63°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 5 mph SW | 76% |
| Saturday | 83°F | Showers And Thunderstorms Likely | 0 to 7 mph SW | 65% |
| Saturday Night | 62°F | Showers And Thunderstorms Likely | 0 to 5 mph SW | 65% |
| Sunday | 86°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 7 mph SW | 22% |
| Sunday Night | 64°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 to 6 mph SW | 32% |
| Monday | 84°F | Chance Showers And Thunderstorms | 3 to 10 mph W | 50% |
| Monday Night | 61°F | Chance Showers And Thunderstorms | 2 to 8 mph W | 50% |
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 Aug 4, 2026.