Lost Lake Weather Forecast

    • 56
    • 81

    Mostly Sunny

    • 60
    • 86

    Partly Sunny

    • 59
    • 92

    Partly Sunny

    • 60
    • 84

    Partly Sunny

    • 59
    • 82

    Partly Sunny

    • 57
    • 78

    Mostly Sunny

Today 19 Jul Island County

Sunny. Highs in the upper 60s to mid 70s. Northwest wind to 10 Mph increasing to 10 to 15 Mph in the afternoon.

Tonight 19 Jul Island County

Mostly clear. Lows in the 50s. Northwest wind to 10 Mph.

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Lost Lake Temperature Statistics

July Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 13 July, 2026

    44.6 °F

  • Average July

    62 °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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