Lost Lake Weather Forecast

    • 57
    • 81

    Decreasing Clouds

    • 57
    • 90

    Partly Sunny

    • 56
    • 80

    Partly Sunny

    • 55
    • 79

    Mostly Cloudy

    • 55
    • 73

    Partly Sunny

    • 53
    • 71

    Partly Sunny

Today 24 Aug Island County

Partly sunny in the morning then becoming sunny. Patchy dense fog in the morning. Highs in the upper 60s to mid 70s. Northwest wind to 10 Mph increasing to 10 to 15 Mph in the afternoon.

Tonight 24 Aug Island County

Partly cloudy. Lows in the mid to upper 50s. Northwest wind 10 to 15 Mph decreasing to 10 Mph or less after midnight.

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Lost Lake Temperature Statistics

August Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 3 August, 2026

    46.4 °F

  • Average August

    64.6 °F

  • Highest 6 August, 2026

    84.9 °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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