Lost Lake Weather Forecast

    • 49
    • 66

    Rain Showers

    • 49
    • 66

    Increasing Clouds

    • 48
    • 66

    Partly Sunny

    • 54
    • 67

    Rain Likely

    • 53
    • 64

    Chance Rain

    • 52
    • 65

    Chance Rain

    • 50
    • 64

    Chance Rain

Today 25 Sep Island County

Partly sunny. A slight chance of rain in the morning. Highs near 60.

Tonight 25 Sep Island County

Breezy. Mostly clear. A slight chance of rain in the evening. Lows in the mid 40s to lower 50s. West wind 15 to 25 Mph with Gusts to 35 Mph becoming south 10 to 15 Mph with Gusts to 25 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lost Lake Temperature Statistics

September Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 16 September, 2026

    44.1 °F

  • Average September

    59 °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

    42.6 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.9 °F
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