Hartington Weather Forecast

    • 69
    • 93

    Mostly Sunny

    • 78
    • 97

    Hot

    • 70
    • 102

    Hot

    • 62
    • 89

    Partly Sunny

    • 63
    • 85

    Chance Thunderstorms

    • 64
    • 85

    Chance Rain Showers

Today 18 Jul Cedar

Mostly sunny. A slight chance of Showers in the afternoon. Humid with Highs in the lower 90s. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 18 Jul Cedar

Mostly clear. Lows in the upper 60s. East Winds 10 to 15 Mph.

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Hartington Temperature Statistics

July Temperature

Yankton, Chan Gurney Municipal Airport (21.1 miles)

  • Lowest 3 July, 2026

    64.9 °F

  • Average July

    78.2 °F

  • Highest 2 July, 2026

    91 °F

Climate (2021–2026)

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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