Vermillion Weather Forecast

    • 76
    • 100

    Hot

    • 72
    • 97

    Hot

    • 69
    • 91

    Partly Sunny

    • 71
    • 93

    Chance Thunderstorms

    • 68
    • 87

    Chance Rain Showers

    • 66
    • 85

    Partly Sunny

Today 26 Jul Clay

Mostly sunny. Hot with Highs around 100. South Winds 10 to 15 Mph. Heat index Values up to 115.

Tonight 26 Jul Clay

Partly cloudy. A slight chance of Showers and Thunderstorms in the evening. Humid with Lows in the mid 70s. South Winds 10 to 15 Mph, becoming southwest around 5 Mph after midnight. Chance of rain 20 percent. Heat index Values up to 111 early in the evening.

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Vermillion Temperature Statistics

July Temperature

Yankton, Chan Gurney Municipal Airport (24.9 miles)

  • Lowest 22 July, 2026

    59 °F

  • Average July

    77.6 °F

  • Highest 17 July, 2026

    97 °F

Climate (2021–2026)

Yankton, Chan Gurney Municipal Airport (24.9 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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