Union Grove Weather Forecast

    • 53
    • 67

    Partly Sunny

    • 55
    • 68

    Mostly Cloudy

    • 52
    • 67

    Mostly Cloudy

    • 54
    • 64

    Slight Chance Rain Showers

    • 55
    • 68

    Partly Sunny

    • 58
    • 73

    Partly Sunny

Today 23 Sep Whiteside

Mostly cloudy. Highs in the upper 60s. Northeast Winds 5 to 10 Mph.

Tonight 23 Sep Whiteside

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the lower 50s. Northeast Winds 5 to 10 Mph.

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Union Grove Temperature Statistics

September Temperature

Tri-Township Airport (14.9 miles)

  • Lowest 14 September, 2026

    48.6 °F

  • Average September

    70.9 °F

  • Highest 4 September, 2026

    95.9 °F

Climate (2021–2026)

Tri-Township Airport (14.9 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    62.7 °F
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