Union Grove Weather Forecast

    • 32
    • 56

    Mostly Cloudy

    • 35
    • 44

    Rain Showers

    • 28
    • 44

    Rain Showers

    • 25
    • 43

    Rain/Snow

    • 23
    • 40

    Chance Snow Showers

    • 31
    • 52

    Mostly Sunny

    • 31
    • 62

    Mostly Cloudy

Today 31 Mar Union

Mostly sunny and breezy. Much cooler. Near steady temperature in the mid 50s. North Winds 20 to 25 Mph.

Tonight 31 Mar Union

Mostly cloudy. Lows in the lower 30s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Grove Temperature Statistics

March Temperature

Yankton, Chan Gurney Municipal Airport (30.4 miles)

  • Lowest 16 March, 2026

    1.9 °F

  • Average March

    43.1 °F

  • Highest 21 March, 2026

    91.9 °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

    50.4 °F

  • Average High 2021–2026

    61.8 °F
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