South Yankton Weather Forecast

    • 32
    • 58

    Breezy

    • 32
    • 44

    Rain

    • 30
    • 45

    Wintry Mix Likely

    • 29
    • 46

    Rain Likely

    • 24
    • 45

    Chance Rain

    • 30
    • 53

    Partly Sunny

Today 31 Mar Cedar

Mostly cloudy in the Morning, then becoming partly sunny. Windy and much cooler with Highs in the upper 50s. North Winds 20 to 30 Mph. Gusts up to 45 Mph in the morning.

Tonight 31 Mar Cedar

Mostly cloudy. A slight chance of snow after midnight. Cooler with Lows in the lower 30s. Northeast Winds 15 to 20 Mph. Chance of snow 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Yankton Temperature Statistics

March Temperature

Yankton, Chan Gurney Municipal Airport (4.3 miles)

  • Lowest 16 March, 2026

    1.9 °F

  • Average March

    42.6 °F

  • Highest 21 March, 2026

    91.9 °F

Climate (2021–Present)

Yankton, Chan Gurney Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    50.4 °F

  • Average High 2021–2026

    61.8 °F
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