Union County Airport Weather Forecast

    • 66
    • 82

    Chance Thunderstorms

    • 70
    • 84

    Rain Showers Likely

    • 68
    • 87

    Rain Showers Likely

    • 59
    • 80

    Partly Sunny

    • 59
    • 79

    Mostly Sunny

    • 65
    • 82

    Chance Rain Showers

Today 14 Aug Union

Mostly cloudy until late Afternoon, then becoming partly cloudy. Showers likely with a chance of Thunderstorms this Morning, then a chance of Showers and Thunderstorms this afternoon. Some Thunderstorms may produce heavy rainfall this morning. Highs in the lower 80s. Southeast Winds around 5 Mph, becoming northeast this afternoon. Chance of rain 70 percent.

Tonight 14 Aug Union

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear with a slight chance of Showers after midnight. Muggy. Lows in the mid 60s. Northeast Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Real-Time

Union County Airport Temperature Statistics

August Temperature

Marysville Union County Airport (0 miles)

  • Lowest 4 August, 2026

    50 °F

  • Average August

    72.6 °F

  • Highest 6 August, 2026

    87.8 °F

Climate (2021–2026)

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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