Union Weather Forecast

    • 62
    • 87

    Increasing Clouds

    • 60
    • 87

    Partly Sunny

    • 60
    • 89

    Mostly Sunny

    • 60
    • 90

    Mostly Sunny

    • 61
    • 90

    Mostly Sunny

    • 62
    • 90

    Partly Sunny

Today 13 Sep Montgomery

Mostly sunny in the Morning, then becoming partly cloudy. Highs in the upper 80s. Southeast Winds around 5 Mph, becoming west around 5 Mph in the afternoon.

Tonight 13 Sep Montgomery

Clear. Lows in the mid 50s. East Winds around 5 Mph.

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Union Temperature Statistics

September Temperature

Dayton, Cox Dayton International Airport (4.3 miles)

  • Lowest 8 September, 2025

    44.1 °F

  • Average September

    64.4 °F

  • Highest 3 September, 2025

    82.9 °F

Climate (2020–Present)

Dayton, Cox Dayton International Airport (4.3 miles)

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  • Average Low 2020–2025

    46.3 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    64.6 °F
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