Lost Lake Weather Forecast

    • 57
    • 78

    Increasing Clouds

    • 57
    • 78

    Partly Sunny

    • 57
    • 82

    Partly Sunny

    • 58
    • 81

    Partly Sunny

    • 57
    • 79

    Mostly Cloudy

    • 58
    • 78

    Mostly Cloudy

Today 11 Aug Island County

Sunny. Highs in the upper 60s to mid 70s. Southwest wind to 10 Mph becoming west in the afternoon.

Tonight 11 Aug Island County

Partly cloudy. Lows in the 50s. West wind 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lost Lake Temperature Statistics

August Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 3 August, 2026

    46.4 °F

  • Average August

    64.7 °F

  • Highest 6 August, 2026

    84.9 °F

Climate (2021–2026)

Arlington Municipal Airport (14.9 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.9 °F
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