Chief Joseph State Park Weather Forecast

    • 72
    • 102

    Hot

    • 73
    • 103

    Hot

    • 74
    • 103

    Hot

    • 70
    • 94

    Hot

    • 68
    • 92

    Partly Sunny

    • 65
    • 89

    Partly Sunny

Today 24 Aug Okanogan Valley

Hot. Partly cloudy. Highs 93 to 100.

Tonight 24 Aug Okanogan Valley

Mostly clear. Lows in the mid 60s to lower 70s.

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Chief Joseph State Park Temperature Statistics

August Temperature

Omak Airport (27.3 miles)

  • Lowest 8 August, 2025

    49.6 °F

  • Average August

    74.3 °F

  • Highest 12 August, 2025

    99.6 °F

Climate (2020–Present)

Omak Airport (27.3 miles)

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  • Average Low 2020–2025

    40.5 °F

  • Average 2020–2025

    51.6 °F

  • Average High 2020–2025

    62.6 °F
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