Lost Lake Weather Forecast

    • 55
    • 73

    Chance Rain

    • 54
    • 74

    Mostly Cloudy

    • 55
    • 76

    Mostly Cloudy

    • 57
    • 78

    Chance Rain

    • 55
    • 72

    Rain Likely

    • 53
    • 72

    Chance Rain

    • 53
    • 72

    Partly Sunny

Today 29 Aug Island County

Mostly cloudy until late afternoon then becoming mostly sunny. A chance of Showers and a slight chance of Thunderstorms in the Morning, then a slight chance of Showers late in the morning. A slight chance of Thunderstorms early in the afternoon. Highs in the 60s. West wind to 10 Mph becoming southwest in the afternoon.

Tonight 29 Aug Island County

Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower to mid 50s. West wind to 10 Mph with Gusts to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lost Lake Temperature Statistics

August Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 3 August, 2026

    46.4 °F

  • Average August

    64.7 °F

  • Highest 25 August, 2026

    89.1 °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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