Winthrop Weather Forecast

    • 55
    • 86

    Partly Cloudy

    • 59
    • 93

    Increasing Clouds

    • 55
    • 94

    Partly Sunny

    • 49
    • 85

    Mostly Sunny

    • 47
    • 81

    Partly Sunny

    • 44
    • 73

    Chance Rain Showers

    • 47
    • 78

    Partly Sunny

Today 24 Aug Western Okanogan County

Sunny, haze. Highs in the 80s.

Tonight 24 Aug Western Okanogan County

Mostly clear. Haze. Lows in the mid 50s to lower 60s.

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Winthrop Temperature Statistics

August Temperature

Omak Airport (30.4 miles)

  • Lowest 3 August, 2026

    50.6 °F

  • Average August

    74.7 °F

  • Highest 21 August, 2026

    99.6 °F

Climate (2021–2026)

Omak Airport (30.4 miles)

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  • Average Low 2021–2026

    40.7 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    62.9 °F
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