Union Grove Weather Forecast

    • 45
    • 65

    Becoming Sunny

    • 50
    • 68

    Sunny

    • 52
    • 75

    Mostly Sunny

    • 57
    • 74

    Partly Sunny

    • 57
    • 73

    Chance Rain Showers

    • 48
    • 67

    Chance Rain Showers

Today 19 Oct Union

Partly sunny this Morning, then clearing. Highs in the mid 60s. Southeast Winds 5 to 10 Mph.

Tonight 19 Oct Union

Mostly clear. Lows in the mid 40s. Southeast Winds 5 to 10 Mph.

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Union Grove Temperature Statistics

October Temperature

Yankton, Chan Gurney Municipal Airport (30.4 miles)

  • Lowest 16 October, 2026

    36 °F

  • Average October

    59.9 °F

  • Highest 10 October, 2026

    91.9 °F

Climate (2021–2026)

Yankton, Chan Gurney Municipal Airport (30.4 miles)

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    61.7 °F
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