Clayton Weather Forecast

    • 57
    • 75

    Rain Showers

    • 57
    • 70

    Rain Showers

    • 56
    • 73

    Rain Showers Likely

    • 57
    • 74

    Slight Chance Thunderstorms

    • 56
    • 82

    Mostly Sunny

    • 58
    • 81

    Slight Chance Thunderstorms

Today 22 Sep Union County

Mostly cloudy in the Morning, then becoming partly cloudy. A slight chance of Showers and Thunderstorms. Highs in the mid 70s. South Winds 15 to 20 Mph. Chance of rain 20 percent.

Tonight 22 Sep Union County

Breezy. Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then Showers likely with a slight chance of Thunderstorms after midnight. Lows in the upper 50s. South Winds 15 to 25 Mph. Chance of rain 70 percent.

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Clayton Temperature Statistics

September Temperature

Clayton Municipal Airpark (1.2 miles)

  • Lowest 13 September, 2026

    54.6 °F

  • Average September

    76.4 °F

  • Highest 3 September, 2026

    96.7 °F

Climate (2021–2026)

Clayton Municipal Airpark (1.2 miles)

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  • Average Low 2021–2026

    43 °F

  • Average 2021–2026

    56.7 °F

  • Average High 2021–2026

    70.8 °F
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