Lost Lake Weather Forecast

    • 55
    • 76

    Increasing Clouds

    • 54
    • 75

    Partly Sunny

    • 56
    • 78

    Mostly Sunny

    • 58
    • 82

    Partly Sunny

    • 60
    • 85

    Partly Sunny

    • 59
    • 84

    Mostly Sunny

Today 17 Jul Island County

Mostly sunny. Highs in the upper 60s to mid 70s. South wind to 10 Mph.

Tonight 17 Jul Island County

Partly cloudy. Lows in the 50s. West wind to 10 Mph.

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  • Temperature Real-Time

Lost Lake Temperature Statistics

July Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 13 July, 2026

    44.6 °F

  • Average July

    61.8 °F

  • Highest 6 July, 2026

    81 °F

Climate (2021–2026)

Arlington Municipal Airport (14.9 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.9 °F
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