Bonaparte Lake Weather Forecast

    • 42
    • 66

    Increasing Clouds

    • 41
    • 65

    Mostly Cloudy

    • 46
    • 66

    Partly Sunny

    • 48
    • 68

    Partly Sunny

    • 39
    • 61

    Mostly Cloudy

    • 34
    • 49

    Slight Chance Snow Showers

Today 5 Oct Okanogan Highlands

Mostly sunny. Highs in the 70s.

Tonight 5 Oct Okanogan Highlands

Mostly clear. Lows in the upper 30s to upper 40s.

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Bonaparte Lake Temperature Statistics

October Temperature

Omak Airport (31.1 miles)

  • Lowest 2 October, 2026

    46 °F

  • Average October

    58.5 °F

  • Highest 2 October, 2026

    73 °F

Climate (2021–2026)

Omak Airport (31.1 miles)

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  • Average Low 2021–2026

    40.8 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    62.9 °F
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