Lost Lake Weather Forecast

    • 48
    • 65

    Chance Rain Showers

    • 47
    • 67

    Partly Sunny

    • 49
    • 72

    Mostly Sunny

    • 54
    • 78

    Mostly Sunny

    • 57
    • 87

    Partly Sunny

    • 54
    • 81

    Mostly Cloudy

Today 29 May Island County

Mostly cloudy. A slight chance of Showers in the Morning, then a chance of Showers in the late morning and early afternoon. Highs in the mid 50s to lower 60s. West wind 10 to 20 Mph with Gusts to 35 Mph.

Tonight 29 May Island County

Breezy. Partly cloudy. Lows in the mid to upper 40s. West wind 15 to 25 Mph with Gusts to 35 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

    56.8 °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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