Stewart Lake Weather Forecast

    • 33
    • 55

    Blowing Dust

    • 37
    • 49

    Mostly Cloudy

    • 39
    • 53

    Chance Rain Showers

    • 39
    • 52

    Slight Chance Rain Showers

    • 37
    • 51

    Slight Chance Rain/Snow

    • 35
    • 49

    Chance Rain/Snow

Today 23 Oct Okanogan Valley

Sunny. Patchy blowing dust. Highs in the mid 50s to lower 60s. Windy. North wind 15 to 25 Mph. Gusts up to 45 Mph decreasing to 35 Mph in the afternoon.

Tonight 23 Oct Okanogan Valley

Mostly clear. Lows in the lower to mid 30s. Gusts up to 25 Mph in the evening.

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Stewart Lake Temperature Statistics

October Temperature

Omak Airport (13.7 miles)

  • Lowest 21 October, 2026

    30.9 °F

  • Average October

    55.6 °F

  • Highest 4 October, 2026

    79.6 °F

Climate (2021–2026)

Omak Airport (13.7 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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