Marathon Weather Forecast

    • 50
    • 54

    Rain Showers Likely

    • 48
    • 74

    Chance Rain Showers

    • 55
    • 81

    Partly Sunny

    • 51
    • 81

    Partly Sunny

    • 47
    • 68

    Partly Sunny

    • 45
    • 68

    Slight Chance Rain Showers

Today 24 May Cortland

Mostly cloudy. Highs in the mid 50s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 24 May Cortland

A slight chance of Thunderstorms. Showers. Lows around 50. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marathon Temperature Statistics

May Temperature

Cortland County-Chase Field (13.7 miles)

  • Lowest 1 May, 2026

    28.4 °F

  • Average May

    51.8 °F

  • Highest 18 May, 2026

    87.8 °F

Climate (2021–Present)

Cortland County-Chase Field (13.7 miles)

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  • Average Low 2021–2026

    37.8 °F

  • Average 2021–2026

    47.3 °F

  • Average High 2021–2026

    56.5 °F
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