Hartington Weather Forecast

    • 53
    • 92

    Mostly Sunny

    • 56
    • 86

    Rain Showers Likely

    • 51
    • 91

    Rain Showers

    • 43
    • 74

    Rain Showers Likely

    • 37
    • 60

    Partly Sunny

    • 43
    • 67

    Mostly Cloudy

Today 15 May Cedar

Sunny, hot with Highs in the lower 90s. Southeast Winds 5 to 10 Mph.

Tonight 15 May Cedar

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 50s. North Winds 10 to 15 Mph.

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Hartington Temperature Statistics

May Temperature

Yankton, Chan Gurney Municipal Airport (21.1 miles)

  • Lowest 6 May, 2026

    30 °F

  • Average May

    56.5 °F

  • Highest 11 May, 2026

    86 °F

Climate (2021–Present)

Yankton, Chan Gurney Municipal Airport (21.1 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    61.8 °F
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