Hart Lake Weather Forecast

    • 46
    • 65

    Increasing Clouds

    • 46
    • 61

    Mostly Sunny

    • 45
    • 66

    Mostly Sunny

    • 44
    • 59

    Chance Rain Showers

    • 38
    • 47

    Partly Sunny

    • 43
    • 56

    Mostly Sunny

    • 46
    • 60

    Chance Rain Showers

Today 17 Sep Western Chelan County

Sunny, haze. Highs in the upper 70s to upper 80s.

Tonight 17 Sep Western Chelan County

Partly cloudy. Haze. Lows in the lower 50s to lower 60s.

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Hart Lake Temperature Statistics

September Temperature

Arlington Municipal Airport (59.7 miles)

  • Lowest 9 September, 2025

    51.8 °F

  • Average September

    62.8 °F

  • Highest 3 September, 2025

    81 °F

Climate (2020–Present)

Arlington Municipal Airport (59.7 miles)

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  • Average Low 2020–2025

    42.4 °F

  • Average 2020–2025

    50.6 °F

  • Average High 2020–2025

    59.7 °F
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