Union Grove Weather Forecast

    • 69
    • 91

    Patchy Smoke

    • 65
    • 82

    Rain Showers

    • 61
    • 79

    Breezy

    • 61
    • 81

    Mostly Sunny

    • 64
    • 80

    Mostly Sunny

    • 65
    • 82

    Partly Sunny

Today 29 Jul Union

Mostly sunny. Patchy fog this morning. Patchy smoke. Highs in the lower 90s. Southeast Winds 5 to 10 Mph. Heat index Values up to 100.

Tonight 29 Jul Union

Patchy smoke in the evening. Partly cloudy. Humid with Lows in the upper 60s. Southeast Winds around 10 Mph. Heat index Values in the upper 90s early in the evening.

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  • Temperature Real-Time

Union Grove Temperature Statistics

July Temperature

Yankton, Chan Gurney Municipal Airport (30.4 miles)

  • Lowest 22 July, 2026

    59 °F

  • Average July

    78.2 °F

  • Highest 25 July, 2026

    98.1 °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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