Union County Airport Weather Forecast

    • 42
    • 65

    Mostly Cloudy

    • 42
    • 63

    Partly Sunny

    • 55
    • 71

    Chance Rain Showers

    • 62
    • 84

    Rain Showers Likely

    • 64
    • 87

    Chance Rain Showers

    • 69
    • 93

    Slight Chance Thunderstorms

    • 65
    • 91

    Chance Rain Showers

Today 13 May Union

Partly cloudy. Highs in the mid 60s. Northwest Winds around 20 Mph with Gusts up to 30 Mph.

Tonight 13 May Union

Partly Cloudy, then becoming mostly cloudy this late evening and early Morning, then becoming partly cloudy. Cooler with Lows in the lower 40s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph, Diminishing to around 10 Mph with Gusts up to 20 Mph after midnight.

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Union County Airport Temperature Statistics

May Temperature

Marysville Union County Airport (0 miles)

  • Lowest 2 May, 2026

    33.8 °F

  • Average May

    53.2 °F

  • Highest 4 May, 2026

    75.2 °F

Climate (2021–Present)

Marysville Union County Airport (0 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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