Union Weather Forecast

    • 62
    • 78

    Rain Showers Likely

    • 68
    • 86

    Partly Sunny

    • 72
    • 90

    Mostly Sunny

    • 73
    • 93

    Mostly Sunny

    • 74
    • 94

    Mostly Sunny

    • 74
    • 94

    Slight Chance Thunderstorms

Today 19 Jun Montgomery

Mostly cloudy this Morning, then becoming partly cloudy. Showers likely with a chance of Thunderstorms. Highs in the upper 70s. West Winds around 15 Mph, becoming northwest late. Chance of rain 70 percent.

Tonight 19 Jun Montgomery

Mostly clear. A slight chance of Showers and Thunderstorms in the evening. Lows in the lower 60s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming southwest after midnight. Chance of rain 20 percent.

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Union Temperature Statistics

June Temperature

Dayton, Cox Dayton International Airport (4.3 miles)

  • Lowest 1 June, 2025

    46.7 °F

  • Average June

    71.6 °F

  • Highest 3 June, 2025

    87.7 °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

    64.7 °F
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