Transportation Research Center of Ohio Airport Weather Forecast

    • 55
    • 76

    Increasing Clouds

    • 59
    • 77

    Partly Sunny

    • 64
    • 81

    Partly Sunny

    • 68
    • 85

    Slight Chance Thunderstorms

    • 70
    • 88

    Rain Showers Likely

    • 65
    • 85

    Chance Thunderstorms

Today 23 Jul Union

Mostly sunny. Highs in the mid 70s. Light and variable Winds, becoming northeast around 5 Mph this late morning and afternoon.

Tonight 23 Jul Union

Mostly clear in the Evening, then becoming partly cloudy. Lows in the mid 50s. Northeast Winds around 5 Mph.

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Transportation Research Center of Ohio Airport Temperature Statistics

July Temperature

Marysville Union County Airport (11.2 miles)

  • Lowest 20 July, 2026

    53.6 °F

  • Average July

    77 °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

    62.6 °F
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