Union Grove Weather Forecast

    • 63
    • 80

    Chance Rain Showers

    • 54
    • 82

    Breezy

    • 51
    • 77

    Mostly Sunny

    • 58
    • 82

    Chance Rain Showers

    • 60
    • 82

    Rain Showers Likely

    • 56
    • 75

    Chance Thunderstorms

    • 56
    • 77

    Slight Chance Thunderstorms

Today 16 Jun Union

Mostly sunny. Highs around 80. West Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 16 Jun Union

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms after midnight. Not as cool with Lows in the lower 60s. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Grove Temperature Statistics

June Temperature

Yankton, Chan Gurney Municipal Airport (30.4 miles)

  • Lowest 14 June, 2026

    53.1 °F

  • Average June

    73.4 °F

  • Highest 9 June, 2026

    95 °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

    50.5 °F

  • Average High 2021–2026

    61.8 °F
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