Lost Lake Weather Forecast

    • 54
    • 72

    Increasing Clouds

    • 54
    • 74

    Mostly Cloudy

    • 54
    • 75

    Partly Sunny

    • 55
    • 75

    Mostly Cloudy

    • 55
    • 72

    Partly Sunny

    • 56
    • 76

    Partly Sunny

    • 56
    • 76

    Chance Rain

Today 4 Sep Island County

Partly sunny. A chance of Showers in the morning. Highs in the 60s. Light wind becoming northwest to 10 Mph in the afternoon.

Tonight 4 Sep Island County

Mostly cloudy. Lows in the lower to mid 50s. Northwest wind to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lost Lake Temperature Statistics

September Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 1 September, 2026

    51.1 °F

  • Average September

    61.8 °F

  • Highest 2 September, 2026

    71.1 °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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