Clayton Weather Forecast

    • 77
    • 91

    Slight Chance Thunderstorms

    • 75
    • 94

    Chance Thunderstorms

    • 74
    • 93

    Chance Thunderstorms

    • 75
    • 93

    Chance Thunderstorms

    • 72
    • 91

    Rain Showers Likely

    • 71
    • 88

    Chance Thunderstorms

Today 17 Jul Johnston

Partly sunny. A chance of Showers and Thunderstorms this afternoon. Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Chance of rain 30 percent. Heat index Values up to 102.

Tonight 17 Jul Johnston

Partly cloudy. Lows in the upper 70s. Southwest Winds 5 to 10 Mph.

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Clayton Temperature Statistics

July Temperature

Smithfield, Johnston County Airport (8.1 miles)

  • Lowest 5 July, 2025

    66.2 °F

  • Average July

    79.3 °F

  • Highest 4 July, 2025

    93.2 °F

Climate (2020–Present)

Smithfield, Johnston County Airport (8.1 miles)

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  • Average Low 2020–2025

    51.1 °F

  • Average 2020–2025

    61.7 °F

  • Average High 2020–2025

    73.4 °F
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