Irene Weather Forecast

    • 70
    • 88

    Rain Showers Likely

    • 62
    • 86

    Slight Chance Rain Showers

    • 56
    • 80

    Mostly Sunny

    • 62
    • 84

    Slight Chance Thunderstorms

    • 61
    • 87

    Mostly Sunny

    • 56
    • 80

    Mostly Sunny

Today 7 Sep Yankton

Mostly cloudy in the Morning, then becoming mostly sunny. Breezy, warmer with Highs around 90. Southeast Winds 15 to 25 Mph with Gusts up to 35 Mph. Heat index Values up to 100 in the afternoon.

Tonight 7 Sep Yankton

A chance of Thunderstorms. Showers, mainly in the evening. Humid with Lows in the lower 70s. Southeast Winds 15 to 20 Mph. Gusts up to 35 Mph in the evening. Chance of rain 90 percent. Heat index Values in the upper 90s early in the evening.

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Irene Temperature Statistics

September Temperature

Yankton, Chan Gurney Municipal Airport (15.5 miles)

  • Lowest 2 September, 2026

    66.9 °F

  • Average September

    79.9 °F

  • Highest 4 September, 2026

    95 °F

Climate (2021–2026)

Yankton, Chan Gurney Municipal Airport (15.5 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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