Winthrop Weather Forecast

    • 44
    • 75

    Increasing Clouds

    • 50
    • 80

    Increasing Clouds

    • 50
    • 84

    Rain Showers Likely

    • 47
    • 71

    Rain Showers Likely

    • 44
    • 68

    Rain Showers Likely

    • 45
    • 71

    Chance Rain Showers

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    • 75

    Chance Rain Showers

Today 30 Aug Western Okanogan County

Mostly cloudy. Highs in the upper 60s to mid 70s.

Tonight 30 Aug Western Okanogan County

Partly cloudy. Lows in the mid 40s to lower 50s.

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Winthrop Temperature Statistics

August Temperature

Omak Airport (30.4 miles)

  • Lowest 3 August, 2026

    50.6 °F

  • Average August

    74.6 °F

  • Highest 21 August, 2026

    99.6 °F

Climate (2021–2026)

Omak Airport (30.4 miles)

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  • Average Low 2021–2026

    40.8 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    62.9 °F
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