Hartington Weather Forecast

    • 61
    • 70

    Chance Rain Showers

    • 60
    • 71

    Mostly Cloudy

    • 61
    • 71

    Rain Showers

    • 58
    • 67

    Chance Rain Showers

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    • 67

    Chance Rain Showers

Today 26 Sep Cedar

Patchy fog early this morning. A slight chance of Thunderstorms. Showers early this Morning, then a slight chance of Showers this afternoon. Highs in the upper 60s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain near 100 percent.

Tonight 26 Sep Cedar

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms in the evening. Patchy fog after midnight. Humid with Lows in the lower 60s. Southeast Winds 5 to 10 Mph, becoming east after midnight. Chance of rain 40 percent.

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Hartington Temperature Statistics

September Temperature

Yankton, Chan Gurney Municipal Airport (21.1 miles)

  • Lowest 13 September, 2026

    48.9 °F

  • Average September

    69 °F

  • Highest 4 September, 2026

    95 °F

Climate (2021–2026)

Yankton, Chan Gurney Municipal Airport (21.1 miles)

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    61.8 °F
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