White Rock Lakes Weather Forecast

    • 43
    • 54

    Becoming Sunny

    • 44
    • 57

    Mostly Sunny

    • 38
    • 54

    Partly Sunny

    • 34
    • 47

    Partly Sunny

    • 34
    • 42

    Partly Sunny

    • 35
    • 41

    Chance Rain

    • 31
    • 39

    Chance Snow

Today 19 Sep Western Chelan County

Partly cloudy. Highs in the 60s.

Tonight 19 Sep Western Chelan County

Mostly clear. Lows in the lower 50s to lower 60s.

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  • Temperature Real-Time

White Rock Lakes Temperature Statistics

September Temperature

Arlington Municipal Airport (52.2 miles)

  • Lowest 16 September, 2026

    44.1 °F

  • Average September

    59.9 °F

  • Highest 9 September, 2026

    78.1 °F

Climate (2021–2026)

Arlington Municipal Airport (52.2 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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