Marathon, NY Weather & Growing Conditions
Tonight
54°F
Cloudy then Rain Showers
Rain showers after midnight. Cloudy, with a low around 54. Southeast wind 3 to 9 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Cloudy then Rain Showers | 3 to 9 mph SE | 95% |
| Sunday | 66°F | Showers And Thunderstorms | 6 to 10 mph S | 99% |
| Sunday Night | 45°F | Mostly Cloudy | 8 mph N | 4% |
| Monday | 64°F | Partly Sunny | 7 mph N | 0% |
| Monday Night | 43°F | Mostly Cloudy then Slight Chance Rain Showers | 6 mph NE | 20% |
| Tuesday | 62°F | Slight Chance Rain Showers | 6 mph E | 20% |
| Tuesday Night | 42°F | Mostly Cloudy | 7 mph E | 10% |
| Wednesday | 63°F | Partly Sunny | 9 mph E | 5% |
| Wednesday Night | 42°F | Mostly Cloudy | 8 mph E | 13% |
| Thursday | 61°F | Partly Sunny | 7 mph E | 13% |
| Thursday Night | 42°F | Mostly Cloudy then Slight Chance Rain Showers | 7 mph NE | 20% |
| Friday | 64°F | Chance Rain Showers | 5 to 8 mph N | 25% |
| Friday Night | 44°F | Chance Rain Showers | 8 mph N | 25% |
| Saturday | 67°F | Slight Chance Rain Showers | 9 mph N | 15% |
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 Sep 20, 2026.