Lake Wausau Weather Forecast

    • 52
    • 67

    Mostly Cloudy

    • 47
    • 70

    Partly Sunny

    • 49
    • 68

    Chance Rain Showers

    • 49
    • 65

    Mostly Cloudy

    • 53
    • 70

    Chance Rain Showers

    • 54
    • 68

    Chance Rain Showers

Today 24 Sep Marathon

Mostly cloudy. Patchy fog in the morning. Highs in the middle 60s. Southeast wind 5 to 10 Mph.

Tonight 24 Sep Marathon

Cloudy. Lows in the lower 50s. Light and variable wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Wausau Temperature Statistics

September Temperature

Wausau Downtown Airport (0.6 miles)

  • Lowest 14 September, 2026

    40.6 °F

  • Average September

    65.3 °F

  • Highest 1 September, 2026

    89.7 °F

Climate (2021–2026)

Wausau Downtown Airport (0.6 miles)

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  • Average Low 2021–2026

    37.4 °F

  • Average 2021–2026

    46.8 °F

  • Average High 2021–2026

    56 °F
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