Sinlahekin Wildlife Recreation Area Weather Forecast

    • 33
    • 45

    Mostly Cloudy

    • 36
    • 43

    Rain Likely

    • 31
    • 45

    Rain Likely

    • 32
    • 46

    Mostly Cloudy

    • 33
    • 41

    Chance Rain/Snow

    • 37
    • 43

    Rain Likely

    • 39
    • 43

    Rain Likely

Today 30 Oct Western Okanogan County

Partly sunny. Highs in the mid 40s to lower 50s.

Tonight 30 Oct Western Okanogan County

Mostly cloudy. Lows in the mid 20s to mid 30s.

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Sinlahekin Wildlife Recreation Area Temperature Statistics

October Temperature

Omak Airport (13.7 miles)

  • Lowest 16 October, 2025

    28 °F

  • Average October

    49.4 °F

  • Highest 7 October, 2025

    73 °F

Climate (2020–Present)

Omak Airport (13.7 miles)

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  • Average Low 2020–2025

    40.7 °F

  • Average 2020–2025

    51.8 °F

  • Average High 2020–2025

    62.7 °F
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