Union Grove Weather Forecast

    • 50
    • 71

    Partly Sunny

    • 57
    • 80

    Rain Showers Likely

    • 54
    • 71

    Rain Showers Likely

    • 55
    • 75

    Chance Rain Showers

    • 53
    • 77

    Chance Rain Showers

    • 53
    • 77

    Slight Chance Rain Showers

    • 56
    • 78

    Slight Chance Thunderstorms

Today 19 Jun Union

Showers likely. Near steady temperature in the mid 60s. West Winds 10 to 15 Mph. Chance of rain 70 percent.

Tonight 19 Jun Union

Partly cloudy. Lows around 50. Southwest Winds 5 to 10 Mph, becoming northwest after midnight.

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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 16 June, 2026

    52 °F

  • Average June

    72.7 °F

  • Highest 9 June, 2026

    95 °F

Climate (2021–2026)

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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