Marathon City Weather Forecast

    • 37
    • 61

    Decreasing Clouds

    • 39
    • 60

    Increasing Clouds

    • 44
    • 62

    Chance Rain Showers

    • 48
    • 65

    Chance Rain Showers

    • 49
    • 73

    Slight Chance Thunderstorms

    • 55
    • 82

    Slight Chance Thunderstorms

    • 57
    • 85

    Slight Chance Thunderstorms

Today 20 May Marathon

Partly sunny. Highs around 60. Light and variable wind.

Tonight 20 May Marathon

Mostly cloudy in the evening then becoming partly cloudy. Lows in the middle 30s. Light and variable wind becoming east 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marathon City Temperature Statistics

May Temperature

Wausau Downtown Airport (9.9 miles)

  • Lowest 2 May, 2026

    26.7 °F

  • Average May

    51.3 °F

  • Highest 15 May, 2026

    81.6 °F

Climate (2021–Present)

Wausau Downtown Airport (9.9 miles)

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  • Average Low 2021–2026

    37.4 °F

  • Average 2021–2026

    46.7 °F

  • Average High 2021–2026

    56 °F
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