Isle of Ferns Park Weather Forecast

    • 55
    • 76

    Chance Rain Showers

    • 60
    • 80

    Slight Chance Thunderstorms

    • 60
    • 88

    Mostly Sunny

    • 56
    • 85

    Chance Thunderstorms

    • 51
    • 79

    Partly Sunny

    • 51
    • 78

    Partly Sunny

Today 24 May Marathon

Partly cloudy in the morning then clearing. Highs in the upper 70s. West wind 5 to 10 Mph.

Tonight 24 May Marathon

Mostly cloudy with a slight chance of Showers. Patchy fog. Lows around 50. Light and variable wind. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Isle of Ferns Park Temperature Statistics

May Temperature

Wausau Downtown Airport (1.2 miles)

  • Lowest 2 May, 2026

    26.7 °F

  • Average May

    51.5 °F

  • Highest 15 May, 2026

    81.6 °F

Climate (2021–Present)

Wausau Downtown Airport (1.2 miles)

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  • Average Low 2021–2026

    37.4 °F

  • Average 2021–2026

    46.7 °F

  • Average High 2021–2026

    55.9 °F
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