Lost Lake Weather Forecast

    • 58
    • 88

    Areas Smoke

    • 58
    • 87

    Increasing Clouds

    • 57
    • 81

    Mostly Sunny

    • 57
    • 80

    Partly Sunny

    • 58
    • 78

    Mostly Sunny

    • 58
    • 77

    Partly Sunny

    • 57
    • 76

    Partly Sunny

Today 6 Aug Island County

Sunny. Areas of smoke. Highs in the mid 70s to lower 80s. Light wind becoming northwest to 10 Mph in the afternoon.

Tonight 6 Aug Island County

Mostly clear. Lows in the 50s. Northwest wind to 10 Mph in the evening becoming light.

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  • Temperature Real-Time

Lost Lake Temperature Statistics

August Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 3 August, 2026

    46.4 °F

  • Average August

    61.5 °F

  • Highest 4 August, 2026

    78.1 °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

    59.8 °F
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