Smithfield Weather Forecast

    • 73
    • 95

    Chance Thunderstorms

    • 69
    • 90

    Thunderstorms Likely

    • 68
    • 83

    Rain Showers

    • 70
    • 88

    Chance Thunderstorms

    • 74
    • 94

    Mostly Sunny

    • 74
    • 97

    Hot

Today 11 Jul Johnston

Partly sunny. Near steady temperature in the lower 90s. West Winds around 10 Mph. Heat index Values up to 103.

Tonight 11 Jul Johnston

Partly cloudy. A chance of Showers and Thunderstorms in the Evening, then a slight chance of Showers after midnight. Lows in the lower 70s. West Winds 5 to 10 Mph in the Evening, becoming light and variable. Chance of rain 40 percent.

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Smithfield Temperature Statistics

July Temperature

Smithfield, Johnston County Airport (3.1 miles)

  • Lowest 1 July, 2026

    68 °F

  • Average July

    81.7 °F

  • Highest 4 July, 2026

    100.4 °F

Climate (2021–2026)

Smithfield, Johnston County Airport (3.1 miles)

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  • Average Low 2021–2026

    50.8 °F

  • Average 2021–2026

    61.6 °F

  • Average High 2021–2026

    73.6 °F
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