Clayton Weather Forecast

    • 60
    • 72

    Rain Showers

    • 61
    • 77

    Mostly Cloudy

    • 62
    • 83

    Partly Sunny

    • 63
    • 88

    Mostly Sunny

    • 62
    • 84

    Partly Sunny

    • 63
    • 80

    Slight Chance Thunderstorms

Today 16 Sep Johnston

Mostly cloudy with a 20 percent chance of rain. Near steady temperature in the lower 70s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 16 Sep Johnston

Mostly cloudy. Lows around 60. Northwest Winds 5 to 10 Mph. Gusts up to 25 Mph this evening.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Clayton Temperature Statistics

September Temperature

Smithfield, Johnston County Airport (8.1 miles)

  • Lowest 1 September, 2025

    53.6 °F

  • Average September

    69.4 °F

  • Highest 6 September, 2025

    91.4 °F

Climate (2020–Present)

Smithfield, Johnston County Airport (8.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    51 °F

  • Average 2020–2025

    61.5 °F

  • Average High 2020–2025

    73.3 °F
Get WillyWeather+ to remove ads