Lost Lake Weather Forecast

    • 43
    • 61

    Mostly Sunny

    • 45
    • 60

    Partly Sunny

    • 51
    • 60

    Mostly Cloudy

    • 49
    • 62

    Mostly Cloudy

    • 49
    • 63

    Partly Sunny

    • 51
    • 66

    Mostly Cloudy

Today 11 Oct Island County

Sunny. Highs in the mid 50s to lower 60s. Northwest wind to 10 Mph increasing to 10 to 15 Mph in the afternoon.

Tonight 11 Oct Island County

Mostly clear. Lows in the upper 30s to mid 40s. Northwest wind 10 to 15 Mph in the evening becoming light.

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Lost Lake Temperature Statistics

October Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 8 October, 2026

    44.1 °F

  • Average October

    56.4 °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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