Winthrop Weather Forecast

    • 54
    • 85

    Mostly Sunny

    • 54
    • 91

    Rain Showers Likely

    • 43
    • 73

    Rain Showers Likely

    • 41
    • 73

    Partly Sunny

    • 45
    • 74

    Partly Sunny

    • 48
    • 77

    Partly Sunny

    • 51
    • 83

    Partly Sunny

Today 27 May Western Okanogan County

Partly cloudy. Highs in the upper 70s to mid 80s.

Tonight 27 May Western Okanogan County

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Winthrop Temperature Statistics

May Temperature

Omak Airport (30.4 miles)

  • Lowest 16 May, 2026

    35.7 °F

  • Average May

    62.3 °F

  • Highest 23 May, 2026

    87.7 °F

Climate (2021–Present)

Omak Airport (30.4 miles)

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  • Average Low 2021–2026

    40.9 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    63.1 °F
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