Crofton Weather Forecast

    • 62
    • 88

    Rain Showers Likely

    • 61
    • 74

    Rain Showers

    • 59
    • 73

    Rain Showers Likely

    • 57
    • 71

    Chance Rain Showers

    • 59
    • 76

    Partly Sunny

    • 60
    • 79

    Slight Chance Thunderstorms

Today 16 Sep Knox

Sunny. Highs in the upper 80s. South Winds 5 to 10 Mph.

Tonight 16 Sep Knox

Mostly cloudy with a chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Lows in the lower 60s. South Winds 5 to 10 Mph, becoming west after midnight. Chance of rain 60 percent.

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Crofton Temperature Statistics

September Temperature

Yankton, Chan Gurney Municipal Airport (13.7 miles)

  • Lowest 7 September, 2025

    41 °F

  • Average September

    65.4 °F

  • Highest 13 September, 2025

    88 °F

Climate (2020–Present)

Yankton, Chan Gurney Municipal Airport (13.7 miles)

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  • Average Low 2020–2025

    39.1 °F

  • Average 2020–2025

    50 °F

  • Average High 2020–2025

    61.2 °F
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