Lost Lake Weather Forecast

    • 58
    • 77

    Chance Rain

    • 56
    • 79

    Mostly Cloudy

    • 57
    • 81

    Partly Sunny

    • 57
    • 82

    Mostly Cloudy

    • 55
    • 74

    Mostly Cloudy

    • 54
    • 72

    Partly Sunny

Today 22 Aug Island County

Cloudy in the morning then becoming partly sunny. A chance of Showers in the late morning and early afternoon. A slight chance of Showers late in the afternoon. Highs in the mid 60s to lower 70s. South wind 10 to 15 Mph.

Tonight 22 Aug Island County

Partly cloudy in the Evening, then mostly cloudy with a slight chance of Showers after midnight. Lows in the mid to upper 50s. West wind 10 to 15 Mph becoming southwest after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

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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