Winthrop Weather Forecast

    • 48
    • 82

    Becoming Sunny

    • 50
    • 81

    Increasing Clouds

    • 44
    • 72

    Rain Showers Likely

    • 47
    • 76

    Partly Sunny

    • 49
    • 79

    Mostly Cloudy

    • 48
    • 80

    Slight Chance Rain Showers

    • 46
    • 72

    Chance Rain Showers

Today 27 Aug Western Okanogan County

Sunny. Haze and Areas of smoke. Highs in the upper 70s to mid 80s.

Tonight 27 Aug Western Okanogan County

Haze in the evening. Partly cloudy. Lows in the mid 40s to mid 50s. Northwest wind 5 to 15 Mph in the Evening, becoming light and variable. Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Winthrop Temperature Statistics

August Temperature

Omak Airport (30.4 miles)

  • Lowest 3 August, 2026

    50.6 °F

  • Average August

    74.9 °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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