Lost Lake Weather Forecast

    • 53
    • 75

    Becoming Sunny

    • 54
    • 81

    Mostly Sunny

    • 57
    • 84

    Mostly Sunny

    • 58
    • 87

    Mostly Sunny

    • 58
    • 79

    Chance Rain

    • 57
    • 78

    Mostly Sunny

    • 58
    • 80

    Mostly Sunny

Today 12 Jul Island County

Sunny. Highs in the mid 60s to lower 70s. West wind around 10 Mph.

Tonight 12 Jul Island County

Mostly clear. Lows near 50. Northwest wind 10 to 15 Mph becoming west after midnight.

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Lost Lake Temperature Statistics

July Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 5 July, 2026

    46.4 °F

  • Average July

    61.3 °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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