Marathon, NY Weather & Growing Conditions
Today
81°F
Areas Of Fog then Sunny
Areas of fog before 9am. Sunny, with a high near 81. Southwest wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Areas Of Fog then Sunny | 2 mph SW | 0% |
| Tonight | 58°F | Partly Cloudy | 3 mph SE | 0% |
| Wednesday | 84°F | Partly Sunny | 3 to 7 mph S | 1% |
| Wednesday Night | 65°F | Slight Chance Showers And Thunderstorms | 6 mph S | 22% |
| Thursday | 85°F | Showers And Thunderstorms | 3 to 7 mph S | 82% |
| Thursday Night | 66°F | Showers And Thunderstorms | 3 mph SW | 82% |
| Friday | 84°F | Showers And Thunderstorms | 5 mph SW | 76% |
| Friday Night | 64°F | Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 3 mph SW | 76% |
| Saturday | 83°F | Showers And Thunderstorms Likely | 6 mph SW | 65% |
| Saturday Night | 63°F | Showers And Thunderstorms Likely | 3 mph SW | 65% |
| Sunday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph SW | 23% |
| Sunday Night | 65°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 6 mph SW | 32% |
| Monday | 84°F | Chance Showers And Thunderstorms | 6 to 9 mph W | 47% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 7 mph W | 47% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Marathon, NY
Last spring frost
May 13
First fall frost
Oct 4
Growing season
145 days
Hardiness zone
5b
Explore more for Marathon, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Ithaca 13 E, Ny (5.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.