Union Grove Weather Forecast

    • 34
    • 61

    Mostly Sunny

    • 46
    • 63

    Partly Sunny

    • 47
    • 60

    Mostly Cloudy

    • 47
    • 61

    Rain Showers Likely

    • 43
    • 56

    Chance Rain Showers

    • 37
    • 56

    Chance Rain Showers

    • 35
    • 54

    Partly Sunny

Today 23 Oct Union

Sunny. Highs in the lower 60s. Light and variable Winds, becoming east around 5 Mph this afternoon.

Tonight 23 Oct Union

Mostly clear this Evening, then becoming partly cloudy. Areas of frost after midnight. Lows in the mid 30s. Southeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Grove Temperature Statistics

October Temperature

Yankton, Chan Gurney Municipal Airport (30.4 miles)

  • Lowest 21 October, 2025

    35.1 °F

  • Average October

    60.5 °F

  • Highest 3 October, 2025

    91 °F

Climate (2020–Present)

Yankton, Chan Gurney Municipal Airport (30.4 miles)

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  • Average Low 2020–2025

    39.2 °F

  • Average 2020–2025

    50.2 °F

  • Average High 2020–2025

    61.4 °F
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