Winthrop Weather Forecast

    • 64
    • 86

    Mostly Sunny

    • 67
    • 88

    Mostly Sunny

    • 73
    • 93

    Mostly Sunny

    • 73
    • 94

    Mostly Sunny

    • 72
    • 94

    Slight Chance Thunderstorms

    • 70
    • 91

    Chance Thunderstorms

Today 13 Aug Buchanan

Sunny. Highs in the mid 80s. Northeast Winds around 5 Mph.

Tonight 13 Aug Buchanan

Mostly clear. Lows in the mid 60s. East Winds around 5 Mph.

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Winthrop Temperature Statistics

August Temperature

St. Joseph, Rosecrans Memorial Airport (17.4 miles)

  • Lowest 2 August, 2025

    57.7 °F

  • Average August

    75.1 °F

  • Highest 8 August, 2025

    95.6 °F

Climate (2020–Present)

St. Joseph, Rosecrans Memorial Airport (17.4 miles)

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  • Average Low 2020–2025

    43.6 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    66.6 °F
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