Sinlahekin Wildlife Recreation Area Weather Forecast

    • 50
    • 66

    Rain Showers Likely

    • 52
    • 71

    Mostly Sunny

    • 55
    • 74

    Sunny

    • 50
    • 76

    Slight Chance Rain Showers

    • 48
    • 68

    Partly Sunny

    • 51
    • 69

    Partly Sunny

Today 14 Sep Western Okanogan County

Mostly cloudy. A chance of rain Showers in the Morning, then rain Showers likely in the afternoon. Highs in the upper 60s to mid 70s. Chance of precipitation 70 percent. Rainfall Amounts less than a tenth of an inch.

Tonight 14 Sep Western Okanogan County

Partly cloudy. A chance of rain Showers in the Evening, then a chance of rain and high mountain snow Showers overnight. Lows in the lower 40s to lower 50s. Chance of precipitation 50 percent.

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Sinlahekin Wildlife Recreation Area Temperature Statistics

September Temperature

Omak Airport (13.7 miles)

  • Lowest 8 September, 2025

    57 °F

  • Average September

    76.9 °F

  • Highest 3 September, 2025

    104 °F

Climate (2020–Present)

Omak Airport (13.7 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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