Lost Lake Weather Forecast

    • 41
    • 58

    Increasing Clouds

    • 43
    • 57

    Chance Rain

    • 45
    • 58

    Chance Rain

    • 45
    • 58

    Slight Chance Rain

    • 44
    • 56

    Mostly Cloudy

    • 42
    • 56

    Partly Sunny

Today 23 Oct Island County

Sunny. Highs in the 50s. Northwest wind 10 to 15 Mph decreasing to 10 Mph or less in the afternoon.

Tonight 23 Oct Island County

Mostly clear. Lows in the upper 30s to mid 40s. Light wind becoming southeast to 10 Mph after midnight.

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Lost Lake Temperature Statistics

October Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 12 October, 2026

    32 °F

  • Average October

    52.8 °F

  • Highest 16 October, 2026

    78.1 °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

    60 °F
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