Lost Lake Weather Forecast

    • 44
    • 58

    Decreasing Clouds

    • 41
    • 57

    Partly Sunny

    • 43
    • 56

    Chance Rain

    • 45
    • 59

    Slight Chance Rain

    • 44
    • 58

    Slight Chance Rain

    • 44
    • 57

    Mostly Cloudy

Today 22 Oct Island County

Partly sunny. Highs in the 50s. Northwest wind to 10 Mph becoming north in the afternoon.

Tonight 22 Oct Island County

Partly cloudy. Lows in the 40s. Northwest wind 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lost Lake Temperature Statistics

October Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 12 October, 2026

    32 °F

  • Average October

    53 °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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