Lost Lake Weather Forecast

    • 49
    • 68

    Increasing Clouds

    • 53
    • 75

    Mostly Cloudy

    • 45
    • 61

    Rain

    • 46
    • 56

    Mostly Cloudy

    • 46
    • 56

    Mostly Cloudy

    • 45
    • 57

    Partly Sunny

Today 15 Oct Island County

Mostly sunny. Patchy fog in the morning. Highs in the 60s. Light wind.

Tonight 15 Oct Island County

Mostly clear. Lows in the mid 40s to lower 50s. Light wind.

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  • Temperature Real-Time

Lost Lake Temperature Statistics

October Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 12 October, 2026

    32 °F

  • Average October

    53.8 °F

  • Highest 2 October, 2026

    71.1 °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

    59.9 °F
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