Lost Lake Weather Forecast

    • 49
    • 62

    Rain

    • 50
    • 63

    Mostly Cloudy

    • 51
    • 64

    Slight Chance Rain

    • 51
    • 68

    Partly Sunny

    • 51
    • 67

    Partly Sunny

    • 52
    • 70

    Partly Sunny

Today 29 Sep Island County

Rain in the late morning and early Afternoon, then cloudy with a chance of rain late in the afternoon. Rainfall Amounts a quarter to a half inch possible. Highs in the mid 50s to lower 60s. South wind 10 to 20 Mph with Gusts to 30 Mph becoming west 10 to 15 Mph in the afternoon.

Tonight 29 Sep Island County

Mostly cloudy. A slight chance of rain in the evening. Lows in the mid 40s to lower 50s. West wind 10 to 15 Mph with Gusts to 25 Mph.

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Lost Lake Temperature Statistics

September Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 27 September, 2026

    39 °F

  • Average September

    58 °F

  • Highest 9 September, 2026

    78.1 °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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