Marathon Weather Forecast

    • 70
    • 91

    Partly Sunny

    • 72
    • 94

    Partly Sunny

    • 73
    • 96

    Mostly Sunny

    • 75
    • 97

    Hot

    • 72
    • 96

    Slight Chance Thunderstorms

    • 68
    • 91

    Chance Thunderstorms

    • 64
    • 87

    Slight Chance Thunderstorms

Today 30 Aug Clermont

Mostly sunny until late Afternoon, then becoming partly cloudy. Highs in the lower 90s. South Winds around 5 Mph, becoming southwest this afternoon.

Tonight 30 Aug Clermont

Partly cloudy. Lows around 70. Southwest Winds around 5 Mph early this Evening, becoming light and Variable, then becoming south around 5 Mph late.

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Marathon Temperature Statistics

August Temperature

Batavia Clermont County Airport (11.8 miles)

  • Lowest 25 August, 2026

    54.9 °F

  • Average August

    74.9 °F

  • Highest 16 August, 2026

    91 °F

Climate (2021–2026)

Batavia Clermont County Airport (11.8 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    56.2 °F

  • Average High 2021–2026

    65.8 °F
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