Union Grove Weather Forecast

    • 30
    • 60

    Mostly Cloudy

    • 25
    • 48

    Mostly Sunny

    • 34
    • 49

    Chance Rain

    • 27
    • 52

    Mostly Cloudy

    • 31
    • 51

    Partly Sunny

    • 30
    • 51

    Slight Chance Rain

    • 35
    • 53

    Partly Sunny

Today 9 Feb Union

Partly sunny. Not as cool with Highs in the lower 60s. West Winds 5 to 10 Mph.

Tonight 9 Feb Union

Mostly cloudy. Lows around 30. North Winds 15 to 20 Mph with Gusts up to 35 Mph.

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  • Temperature Real-Time

Union Grove Temperature Statistics

February Temperature

Yankton, Chan Gurney Municipal Airport (30.4 miles)

  • Lowest 1 February, 2026

    16 °F

  • Average February

    34.4 °F

  • Highest 5 February, 2026

    61 °F

Climate (2021–Present)

Yankton, Chan Gurney Municipal Airport (30.4 miles)

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  • Average Low 2021–2026

    39.2 °F

  • Average 2021–2026

    50.2 °F

  • Average High 2021–2026

    61.5 °F
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