Winthrop Weather Forecast

    • 46
    • 72

    Increasing Clouds

    • 25
    • 51

    Partly Sunny

    • 27
    • 40

    Mostly Sunny

    • 37
    • 55

    Partly Sunny

    • 44
    • 69

    Mostly Sunny

    • 48
    • 72

    Partly Sunny

Today 25 Mar Sibley

Warmer. Mostly sunny. Highs in the lower 70s. South Winds 5 to 10 Mph shifting to the west in the afternoon.

Tonight 25 Mar Sibley

Partly cloudy. Near steady temperature around 40. South Winds 5 to 10 Mph.

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Winthrop Temperature Statistics

March Temperature

New Ulm Municipal Airport (16.2 miles)

  • Lowest 1 March, 2026

    1.4 °F

  • Average March

    36.2 °F

  • Highest 21 March, 2026

    80.6 °F

Climate (2021–Present)

New Ulm Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    37.5 °F

  • Average 2021–2026

    47.3 °F

  • Average High 2021–2026

    57 °F
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