Winthrop Weather Forecast

    • 35
    • 62

    Increasing Clouds

    • 33
    • 63

    Mostly Cloudy

    • 34
    • 68

    Mostly Sunny

    • 36
    • 69

    Partly Sunny

    • 31
    • 67

    Partly Sunny

    • 28
    • 58

    Partly Sunny

Today 18 Oct Western Okanogan County

Mostly sunny. Highs in the mid 50s to lower 60s.

Tonight 18 Oct Western Okanogan County

Mostly cloudy. Lows in the lower 30s to lower 40s.

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Winthrop Temperature Statistics

October Temperature

Omak Airport (30.4 miles)

  • Lowest 12 October, 2026

    33.7 °F

  • Average October

    56.8 °F

  • Highest 4 October, 2026

    79.6 °F

Climate (2021–2026)

Omak Airport (30.4 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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