Lost Lake Weather Forecast

    • 57
    • 91

    Patchy Smoke

    • 57
    • 81

    Partly Sunny

    • 56
    • 80

    Mostly Cloudy

    • 54
    • 75

    Chance Rain

    • 53
    • 71

    Mostly Cloudy

    • 54
    • 72

    Mostly Cloudy

Today 25 Aug Island County

Mostly sunny. Patchy smoke in the afternoon. Highs in the mid 70s to lower 80s. Light wind becoming south to 10 Mph in the afternoon.

Tonight 25 Aug Island County

Mostly clear in the evening then becoming mostly cloudy. Lows in the 50s. West wind 10 to 15 Mph becoming southwest 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

    64.5 °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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