Lost Lake Weather Forecast

    • 48
    • 67

    Becoming Sunny

    • 49
    • 71

    Mostly Sunny

    • 54
    • 79

    Mostly Sunny

    • 57
    • 88

    Partly Sunny

    • 53
    • 75

    Chance Rain

    • 52
    • 71

    Slight Chance Rain

Today 30 May Island County

Mostly cloudy in the morning then becoming mostly sunny. Highs in the upper 50s to mid 60s. West wind 10 to 15 Mph.

Tonight 30 May Island County

Mostly clear. Lows in the mid to upper 40s. West wind 10 to 20 Mph with Gusts to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lost Lake Temperature Statistics

May Temperature

Arlington Municipal Airport (14.9 miles)

  • Lowest 18 May, 2026

    42.1 °F

  • Average May

    57 °F

  • Highest 12 May, 2026

    84 °F

Climate (2021–Present)

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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