Lost Lake Weather Forecast

    • 52
    • 72

    Chance Rain

    • 53
    • 73

    Partly Sunny

    • 52
    • 74

    Mostly Cloudy

    • 53
    • 75

    Partly Sunny

    • 55
    • 73

    Mostly Cloudy

    • 54
    • 72

    Partly Sunny

    • 55
    • 75

    Partly Sunny

Today 3 Sep Island County

Partly sunny. A chance of Showers through the day. A slight chance of Thunderstorms in the afternoon. Highs in the 60s. Southeast wind 10 to 20 Mph becoming south in the afternoon.

Tonight 3 Sep Island County

Partly cloudy. Lows near 50. South wind to 10 Mph in the evening becoming light.

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Lost Lake Temperature Statistics

September Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 1 September, 2026

    51.1 °F

  • Average September

    61.1 °F

  • Highest 1 September, 2026

    70 °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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