White Rock Lakes Weather Forecast

    • 34
    • 43

    Mostly Cloudy

    • 34
    • 43

    Mostly Cloudy

    • 35
    • 46

    Rain/Snow

    • 31
    • 38

    Snow Showers

    • 30
    • 36

    Mostly Cloudy

    • 31
    • 37

    Chance Snow

    • 32
    • 37

    Chance Rain/Snow

Today 22 Sep Western Chelan County

Mostly cloudy with a 50 percent chance of rain Showers. Highs in the upper 50s to mid 60s.

Tonight 22 Sep Western Chelan County

Mostly cloudy. Lows in the lower to mid 40s. Northwest wind 5 to 15 Mph with Gusts up to 30 Mph.

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White Rock Lakes Temperature Statistics

September Temperature

Arlington Municipal Airport (52.2 miles)

  • Lowest 16 September, 2026

    44.1 °F

  • Average September

    59.3 °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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