Lost Lake Weather Forecast

    • 45
    • 59

    Chance Rain

    • 44
    • 60

    Mostly Sunny

    • 46
    • 59

    Mostly Sunny

    • 50
    • 59

    Slight Chance Rain

    • 49
    • 61

    Mostly Cloudy

    • 49
    • 61

    Partly Sunny

Today 10 Oct Island County

Mostly cloudy with a slight chance of rain in the Morning, then sunny in the afternoon. Highs in the 50s to lower 60s. Light wind becoming northwest 10 to 15 Mph in the afternoon.

Tonight 10 Oct Island County

Mostly clear. Lows in the 40s. Northwest wind 10 to 15 Mph becoming north after midnight.

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Lost Lake Temperature Statistics

October Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 5 October, 2026

    46 °F

  • Average October

    56.7 °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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