Wausau Weather Forecast

    • 39
    • 61

    Decreasing Clouds

    • 41
    • 61

    Partly Sunny

    • 46
    • 63

    Rain Showers Likely

    • 48
    • 64

    Slight Chance Rain Showers

    • 51
    • 74

    Partly Sunny

    • 56
    • 81

    Mostly Sunny

Today 20 May Marathon

Partly cloudy. Highs around 60. North wind 5 to 10 Mph.

Tonight 20 May Marathon

Partly cloudy. Lows in the upper 30s. Light and variable wind becoming east 5 to 10 Mph after midnight.

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Wausau Temperature Statistics

May Temperature

Wausau Downtown Airport (1.9 miles)

  • Lowest 2 May, 2026

    26.7 °F

  • Average May

    50.4 °F

  • Highest 15 May, 2026

    81.6 °F

Climate (2021–Present)

Wausau Downtown Airport (1.9 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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