Crofton Weather Forecast

    • 57
    • 66

    Rain Showers

    • 58
    • 64

    Rain Showers

    • 60
    • 66

    Rain Showers

    • 61
    • 75

    Partly Sunny

    • 63
    • 76

    Mostly Cloudy

    • 60
    • 76

    Rain Showers

Today 23 Sep Knox

Mostly cloudy. A chance of Showers this Morning, then a slight chance of Showers and Thunderstorms this afternoon. Highs in the upper 60s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 40 percent.

Tonight 23 Sep Knox

Cloudy with a slight chance of Thunderstorms. A chance of Showers in the Evening, then Showers after midnight. Lows in the upper 50s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 80 percent.

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Crofton Temperature Statistics

September Temperature

Yankton, Chan Gurney Municipal Airport (13.7 miles)

  • Lowest 13 September, 2026

    48.9 °F

  • Average September

    69.9 °F

  • Highest 4 September, 2026

    95 °F

Climate (2021–2026)

Yankton, Chan Gurney Municipal Airport (13.7 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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