Winthrop Weather Forecast

    • 55
    • 68

    Rain Showers Likely

    • 56
    • 70

    Rain Showers

    • 48
    • 72

    Chance Thunderstorms

    • 45
    • 71

    Mostly Sunny

    • 54
    • 75

    Partly Sunny

    • 59
    • 75

    Slight Chance Thunderstorms

Today 29 Apr Buchanan

Mostly sunny. Not as warm with Highs in the upper 60s. North Winds 10 to 15 Mph.

Tonight 29 Apr Buchanan

Mostly cloudy with a slight chance of Showers and Thunderstorms. Cooler with Lows in the upper 40s. West Winds 15 to 20 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Winthrop Temperature Statistics

April Temperature

St. Joseph, Rosecrans Memorial Airport (17.4 miles)

  • Lowest 8 April, 2025

    24.9 °F

  • Average April

    55.7 °F

  • Highest 13 April, 2025

    85.6 °F

Climate (2020–Present)

St. Joseph, Rosecrans Memorial Airport (17.4 miles)

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  • Average Low 2020–2025

    43.7 °F

  • Average 2020–2025

    55 °F

  • Average High 2020–2025

    66.5 °F
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