Vermillion Weather Forecast

    • 60
    • 88

    Slight Chance Thunderstorms

    • 54
    • 75

    Partly Sunny

    • 57
    • 67

    Rain Showers

    • 56
    • 80

    Chance Rain Showers

    • 52
    • 68

    Mostly Cloudy

    • 54
    • 67

    Slight Chance Thunderstorms

Today 11 Sep Clay

Mostly sunny and windy. Highs in the upper 80s. South Winds 20 to 30 Mph with Gusts up to 45 Mph.

Tonight 11 Sep Clay

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows around 60. Southwest Winds 15 to 20 Mph with Gusts up to 35 Mph, becoming northwest 10 to 15 Mph after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Vermillion Temperature Statistics

September Temperature

Yankton, Chan Gurney Municipal Airport (24.9 miles)

  • Lowest 8 September, 2026

    64.9 °F

  • Average September

    77.8 °F

  • Highest 4 September, 2026

    95 °F

Climate (2021–2026)

Yankton, Chan Gurney Municipal Airport (24.9 miles)

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    61.8 °F
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