Alsen Weather Forecast

    • 63
    • 85

    Slight Chance Rain Showers

    • 57
    • 70

    Mostly Cloudy

    • 54
    • 65

    Rain Showers Likely

    • 49
    • 59

    Rain Showers Likely

    • 48
    • 63

    Mostly Cloudy

    • 53
    • 67

    Chance Rain Showers

    • 55
    • 67

    Slight Chance Rain Showers

Today 18 Sep Clay

Mostly cloudy in the Morning, then becoming partly sunny. Highs around 70.

Tonight 18 Sep Clay

Mostly cloudy with a slight chance of Showers. A slight chance of Thunderstorms after midnight. Lows in the lower 60s. North Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alsen Temperature Statistics

September Temperature

Yankton, Chan Gurney Municipal Airport (29.2 miles)

  • Lowest 13 September, 2026

    48.9 °F

  • Average September

    71.9 °F

  • Highest 4 September, 2026

    95 °F

Climate (2021–2026)

Yankton, Chan Gurney Municipal Airport (29.2 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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