National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Cortland County-Chase Field (KN03)

Lat: 42.59°NLon: 76.21°WElev: 1198ft.

Mostly Cloudy

54°F

12°C

Humidity 67%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 13 Apr 6:15 am EDT
Extended Forecast for

Marathon NY

  • Today

    Today: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 70. South wind 10 to 16 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Showers
    Likely then
    Chance
    Showers

  • Tonight

    Tonight: A chance of showers, mainly before 8pm. Increasing clouds, with a low around 54. West wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 54 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 75. Southwest wind 5 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Southwest wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 75. West wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.

    High: 75 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 57. Chance of precipitation is 80%.

    Low: 57 °F

    Showers

  • Thursday

    Thursday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 40%.

    High: 68 °F

    Chance
    Showers

Detailed Forecast

Today
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 70. South wind 10 to 16 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers, mainly before 8pm. Increasing clouds, with a low around 54. West wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 75. Southwest wind 5 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Southwest wind 5 to 8 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 75. West wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 57. Chance of precipitation is 80%.
Thursday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Thursday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Friday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 40%.
Friday Night
Partly cloudy, with a low around 50.
Saturday
A chance of showers. Partly sunny, with a high near 75. Chance of precipitation is 40%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 49. Chance of precipitation is 60%.
Sunday
A chance of showers. Mostly cloudy, with a high near 61. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marathon NY
 42.44°N 76°W (Elev. 1486 ft)
Last Update:
6:12 am EDT Apr 13, 2026
Forecast Valid:
6am EDT Apr 13, 2026-6pm EDT Apr 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation