Lake Osoyoos State Park Weather Forecast

    • 38
    • 53

    Increasing Clouds

    • 35
    • 52

    Mostly Sunny

    • 39
    • 52

    Mostly Cloudy

    • 38
    • 56

    Mostly Cloudy

    • 40
    • 55

    Mostly Cloudy

    • 40
    • 52

    Chance Rain Showers

Today 31 Oct Okanogan Valley

Mostly sunny. Highs in the upper 40s to mid 50s.

Tonight 31 Oct Okanogan Valley

Mostly cloudy. A chance of Sprinkles in the evening. Lows in the mid to upper 30s.

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Lake Osoyoos State Park Temperature Statistics

October Temperature

Omak Airport (33.6 miles)

  • Lowest 29 October, 2026

    27 °F

  • Average October

    52.7 °F

  • Highest 4 October, 2026

    79.6 °F

Climate (2021–2026)

Omak Airport (33.6 miles)

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  • Average Low 2021–2026

    40.8 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    63 °F
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