Marathon City Weather Forecast

    • 56
    • 78

    Decreasing Clouds

    • 56
    • 78

    Partly Sunny

    • 59
    • 78

    Rain Showers

    • 61
    • 80

    Rain Showers Likely

    • 52
    • 76

    Partly Sunny

    • 52
    • 74

    Partly Sunny

Today 5 Sep Marathon

Partly sunny. Areas of fog in the morning. Highs in the upper 70s. East wind 5 to 10 Mph.

Tonight 5 Sep Marathon

Cooler. Mostly clear. Patchy fog after midnight. Lows in the middle 50s. Light and variable wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marathon City Temperature Statistics

September Temperature

Wausau Downtown Airport (9.9 miles)

  • Lowest 1 September, 2026

    63.6 °F

  • Average September

    73.6 °F

  • Highest 1 September, 2026

    89.7 °F

Climate (2021–2026)

Wausau Downtown Airport (9.9 miles)

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  • Average Low 2021–2026

    37.3 °F

  • Average 2021–2026

    46.7 °F

  • Average High 2021–2026

    56 °F
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