Hartington Weather Forecast

    • 57
    • 69

    Slight Chance Rain Showers

    • 54
    • 61

    Rain Showers

    • 48
    • 59

    Rain Showers Likely

    • 48
    • 63

    Mostly Cloudy

    • 53
    • 66

    Chance Rain Showers

    • 56
    • 68

    Slight Chance Rain Showers

Today 19 Sep Cedar

Cloudy and not as warm. Near steady temperature in the mid 60s. North Winds around 10 Mph.

Tonight 19 Sep Cedar

Cloudy. A slight chance of Showers after midnight. Lows in the upper 50s. North Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hartington Temperature Statistics

September Temperature

Yankton, Chan Gurney Municipal Airport (21.1 miles)

  • Lowest 13 September, 2026

    48.9 °F

  • Average September

    71.6 °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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