Transportation Research Center of Ohio Airport Weather Forecast

    • 49
    • 63

    Cloudy

    • 51
    • 70

    Mostly Cloudy

    • 53
    • 66

    Mostly Cloudy

    • 59
    • 74

    Rain Likely

    • 54
    • 71

    Rain Likely

    • 49
    • 68

    Chance Rain

    • 44
    • 65

    Chance Rain

Today 31 Oct Union

Mostly cloudy in the Morning, then becoming partly cloudy. Highs in the lower 60s.

Tonight 31 Oct Union

Cloudy. Lows in the upper 40s. Southeast Winds 5 to 10 Mph.

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Transportation Research Center of Ohio Airport Temperature Statistics

October Temperature

Marysville Union County Airport (11.2 miles)

  • Lowest 18 October, 2026

    32 °F

  • Average October

    57.4 °F

  • Highest 1 October, 2026

    87.8 °F

Climate (2021–2026)

Marysville Union County Airport (11.2 miles)

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  • Average Low 2021–2026

    43 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    62.6 °F
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