Lost Lake Weather Forecast

    • 56
    • 88

    Partly Sunny

    • 56
    • 85

    Mostly Sunny

    • 57
    • 86

    Sunny

    • 61
    • 93

    Mostly Sunny

    • 60
    • 94

    Partly Sunny

    • 57
    • 90

    Partly Sunny

Today 19 Jun Island County

Mostly sunny. Highs in the mid 70s to lower 80s. Northwest wind to 10 Mph.

Tonight 19 Jun Island County

Mostly clear. Lows in the 50s. Northwest wind to 10 Mph becoming west after midnight.

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Lost Lake Temperature Statistics

June Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 1 June, 2026

    39.9 °F

  • Average June

    59.8 °F

  • Highest 15 June, 2026

    86 °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

    60 °F
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