Transportation Research Center of Ohio Airport Weather Forecast

    • 72
    • 88

    Chance Thunderstorms

    • 67
    • 86

    Rain Showers

    • 61
    • 82

    Mostly Sunny

    • 68
    • 85

    Mostly Cloudy

    • 63
    • 85

    Chance Thunderstorms

    • 58
    • 77

    Mostly Sunny

Today 17 Jul Union

Mostly sunny in the Morning, then partly cloudy with a chance of Showers and Thunderstorms in the afternoon. Areas of smoke. Highs in the upper 80s. South Winds around 5 Mph. Chance of rain 40 percent.

Tonight 17 Jul Union

Areas of smoke in the evening. Partly cloudy with a chance of Showers and Thunderstorms. Muggy. Lows in the lower 70s. Southwest Winds around 5 Mph. Chance of rain 50 percent.

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Transportation Research Center of Ohio Airport Temperature Statistics

July Temperature

Marysville Union County Airport (11.2 miles)

  • Lowest 8 July, 2026

    62.6 °F

  • Average July

    77.6 °F

  • Highest 3 July, 2026

    95 °F

Climate (2021–2026)

Marysville Union County Airport (11.2 miles)

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  • Average Low 2021–2026

    43.1 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    62.5 °F
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