Hart Lake Weather Forecast

    • 51
    • 66

    Decreasing Clouds

    • 54
    • 70

    Mostly Sunny

    • 57
    • 72

    Mostly Cloudy

    • 47
    • 62

    Rain Showers Likely

    • 44
    • 53

    Partly Sunny

    • 49
    • 63

    Partly Sunny

    • 48
    • 63

    Partly Sunny

Today 19 Aug Western Chelan County

Partly cloudy. Highs in the lower 80s to lower 90s.

Tonight 19 Aug Western Chelan County

Partly cloudy. Lows in the upper 50s to upper 60s.

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Hart Lake Temperature Statistics

August Temperature

Arlington Municipal Airport (59.7 miles)

  • Lowest 3 August, 2026

    46.4 °F

  • Average August

    64 °F

  • Highest 6 August, 2026

    84.9 °F

Climate (2021–2026)

Arlington Municipal Airport (59.7 miles)

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  • Average Low 2021–2026

    42.5 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.8 °F
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