Transportation Research Center of Ohio Airport Weather Forecast

    • 63
    • 84

    Slight Chance Thunderstorms

    • 64
    • 85

    Partly Sunny

    • 67
    • 87

    Mostly Sunny

    • 70
    • 91

    Mostly Sunny

    • 70
    • 91

    Mostly Sunny

    • 68
    • 88

    Slight Chance Thunderstorms

Today 11 Jul Union

Mostly cloudy. A chance of Showers in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Highs in the mid 80s. Northeast Winds 5 to 10 Mph. Chance of rain 30 percent.

Tonight 11 Jul Union

Partly cloudy. Lows in the lower 60s. Northeast Winds 5 to 10 Mph.

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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

    78.8 °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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