Lost Lake Weather Forecast

    • 59
    • 78

    Increasing Clouds

    • 66
    • 75

    Rain Showers

    • 51
    • 77

    Mostly Sunny

    • 51
    • 74

    Mostly Sunny

    • 59
    • 78

    Rain Showers Likely

    • 52
    • 76

    Slight Chance Thunderstorms

    • 50
    • 70

    Chance Rain Showers

Today 7 Sep Marathon

Partly cloudy. Temperatures near 80. South wind 10 to 15 Mph.

Tonight 7 Sep Marathon

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers and Thunderstorms after midnight. Lows in the upper 50s. Southeast wind 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lost Lake Temperature Statistics

September Temperature

Wausau Downtown Airport (14.3 miles)

  • Lowest 1 September, 2026

    63.6 °F

  • Average September

    73.9 °F

  • Highest 1 September, 2026

    89.7 °F

Climate (2021–2026)

Wausau Downtown Airport (14.3 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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