Mount Bonaparte Weather Forecast

    • 51
    • 65

    Mostly Sunny

    • 49
    • 63

    Mostly Sunny

    • 49
    • 63

    Mostly Sunny

    • 48
    • 62

    Partly Sunny

    • 40
    • 53

    Partly Sunny

    • 44
    • 54

    Partly Sunny

    • 47
    • 59

    Chance Rain Showers

Today 17 Sep Okanogan Highlands

Sunny. Highs in the 80s.

Tonight 17 Sep Okanogan Highlands

Mostly clear. Lows in the upper 40s to upper 50s.

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Mount Bonaparte Temperature Statistics

September Temperature

Omak Airport (28.6 miles)

  • Lowest 15 September, 2025

    53.1 °F

  • Average September

    74.5 °F

  • Highest 3 September, 2025

    104 °F

Climate (2020–Present)

Omak Airport (28.6 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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