Lost Lake Weather Forecast

    • 55
    • 76

    Mostly Cloudy

    • 58
    • 78

    Mostly Cloudy

    • 55
    • 75

    Rain Likely

    • 53
    • 73

    Rain Showers Likely

    • 53
    • 71

    Slight Chance Rain

    • 54
    • 72

    Slight Chance Rain

Today 31 Aug Island County

Partly sunny. Highs in the mid 60s to lower 70s. Northwest wind to 10 Mph increasing to 10 to 15 Mph in the afternoon.

Tonight 31 Aug Island County

Mostly cloudy in the evening then becoming partly cloudy. Lows in the lower to mid 50s. Northwest wind 10 to 15 Mph in the evening becoming light.

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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

    64.6 °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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