Hart Lake Weather Forecast

    • 44
    • 62

    Mostly Sunny

    • 44
    • 58

    Mostly Sunny

    • 50
    • 65

    Mostly Sunny

    • 57
    • 71

    Partly Sunny

    • 58
    • 73

    Partly Sunny

    • 56
    • 72

    Partly Sunny

    • 54
    • 71

    Mostly Sunny

Today 17 Jul Western Chelan County

Sunny. Patchy smoke. Highs in the upper 70s to upper 80s.

Tonight 17 Jul Western Chelan County

Mostly clear. Lows in the lower 50s to lower 60s. Gusts up to 30 Mph.

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Hart Lake Temperature Statistics

July Temperature

Arlington Municipal Airport (59.7 miles)

  • Lowest 13 July, 2026

    44.6 °F

  • Average July

    62.1 °F

  • Highest 6 July, 2026

    81 °F

Climate (2021–2026)

Arlington Municipal Airport (59.7 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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