Union Grove Weather Forecast

    • 46
    • 73

    Chance Rain Showers

    • 54
    • 83

    Mostly Sunny

    • 30
    • 69

    Chance Rain/Snow

    • 27
    • 47

    Slight Chance Snow Showers

    • 36
    • 60

    Mostly Sunny

    • 46
    • 69

    Mostly Sunny

Today 15 Apr Union

Partly sunny with a slight chance of Showers in the Morning, then mostly cloudy with a chance of Showers with a slight chance of Thunderstorms in the afternoon. Highs in the lower 70s. Northeast Winds 5 to 10 Mph. Chance of rain 30 percent.

Tonight 15 Apr Union

Mostly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the mid 40s. East Winds around 5 Mph, becoming south after midnight. Chance of rain 20 percent.

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Union Grove Temperature Statistics

April Temperature

Yankton, Chan Gurney Municipal Airport (30.4 miles)

  • Lowest 10 April, 2026

    23 °F

  • Average April

    43.9 °F

  • Highest 12 April, 2026

    84 °F

Climate (2021–Present)

Yankton, Chan Gurney Municipal Airport (30.4 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    50.4 °F

  • Average High 2021–2026

    61.7 °F
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