Rebecca Lake Weather Forecast

    • 59
    • 84

    Mostly Sunny

    • 58
    • 85

    Mostly Sunny

    • 56
    • 84

    Mostly Sunny

    • 57
    • 80

    Partly Sunny

    • 51
    • 75

    Mostly Sunny

    • 53
    • 76

    Mostly Sunny

Today 17 Sep Upper Columbia Basin

Sunny. Highs in the mid to upper 80s. East wind 5 to 10 Mph.

Tonight 17 Sep Upper Columbia Basin

Mostly clear. Lows in the 50s. Light wind.

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Rebecca Lake Temperature Statistics

September Temperature

Omak Airport (38.5 miles)

  • Lowest 15 September, 2025

    53.1 °F

  • Average September

    74.5 °F

  • Highest 3 September, 2025

    104 °F

Climate (2020–Present)

Omak Airport (38.5 miles)

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  • Average Low 2020–2025

    40.7 °F

  • Average 2020–2025

    51.7 °F

  • Average High 2020–2025

    62.7 °F
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