Lost Lake Weather Forecast

    • 50
    • 65

    Mostly Cloudy

    • 50
    • 66

    Partly Sunny

    • 52
    • 70

    Partly Sunny

    • 49
    • 62

    Rain Showers Likely

    • 46
    • 59

    Partly Sunny

    • 43
    • 59

    Mostly Sunny

    • 45
    • 60

    Partly Sunny

Today 6 Oct Island County

Partly sunny. Highs near 60.

Tonight 6 Oct Island County

Mostly cloudy. Areas of fog. Lows in the mid 40s to lower 50s. Northwest wind to 10 Mph.

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Lost Lake Temperature Statistics

October Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 4 October, 2026

    48 °F

  • Average October

    58 °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

    42.5 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.9 °F
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