Transportation Research Center of Ohio Airport Weather Forecast

    • 63
    • 82

    Mostly Sunny

    • 66
    • 85

    Slight Chance Thunderstorms

    • 66
    • 85

    Rain Showers Likely

    • 66
    • 83

    Rain Showers Likely

    • 66
    • 84

    Chance Thunderstorms

    • 69
    • 86

    Slight Chance Thunderstorms

Today 4 Aug Union

Sunny. Highs in the lower 80s. Light and variable Winds, becoming east around 5 Mph this late morning and afternoon.

Tonight 4 Aug Union

Mostly clear. Lows in the lower 60s. Northeast Winds around 5 Mph in the Evening, becoming light and variable.

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Transportation Research Center of Ohio Airport Temperature Statistics

August Temperature

Marysville Union County Airport (11.2 miles)

  • Lowest 1 August, 2026

    68 °F

  • Average August

    72.4 °F

  • Highest 1 August, 2026

    78.8 °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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