Marathon, NY Weather Forecast

Cortland County

Current Weather

66°
Reported in Binghamton, NY

24 Hour Weather Forecast

Through 11am

Lower
60s

Sunny. A few clouds.
No weather hazards are expected.
Forecast Confidence is High: The actual weather should nearly match the forecast.

Afternoon

Middle
80s

Sun and clouds.
No weather hazards are expected.
Forecast Confidence is High: The actual weather should nearly match the forecast.

Evening

Upper
70s

Mostly clear.
No weather hazards are expected.
Forecast Confidence is High: The actual weather should nearly match the forecast.

7 Day Weather Forecast

finger lakes weather seven day forecast graphic

Latest News

finger lakes weather 7-day forecast mon jun 29 | mon, sun and clouds mid 80 | tues, a few thunderstorms near 90 | wed, very hot maybe a storm mid 90 | thur, very hot sun and clouds mid 90 | fri, a few thunderstorms low 90 | sat, a few thunderstorms upper 80 | sun, a few showers mid 80

29 Jun 2026

Heat and humidity reach hazardous levels this week

by Meteorologist Drew Montreuil | posted in: Forecast | 0

Heat and humidity will build through the first half of the week, peaking Wednesday, Thursday, and lingering into Friday. With all the heat and moisture, the atmosphere will be primed for thunderstorms if there are small disturbances present to trigger storms. At this time, Tuesday and Saturday look to have the highest chances for widespread showers and storms, though uncertainty remains high.… Read More