Smithfield Weather Forecast

    • 68
    • 84

    Slight Chance Thunderstorms

    • 69
    • 89

    Chance Thunderstorms

    • 71
    • 92

    Thunderstorms Likely

    • 68
    • 90

    Mostly Sunny

    • 67
    • 87

    Mostly Sunny

    • 69
    • 88

    Slight Chance Thunderstorms

Today 26 Jul Johnston

Patchy fog this morning. Partly sunny. Visibility one quarter mile or less at Times this morning. Warmer with Highs in the mid 80s. Light and variable Winds, becoming west around 5 Mph this afternoon.

Tonight 26 Jul Johnston

Mostly clear. A slight chance of Showers after midnight. Lows in the upper 60s. Light and variable Winds, becoming south around 5 Mph after midnight. Chance of rain 20 percent.

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Smithfield Temperature Statistics

July Temperature

Smithfield, Johnston County Airport (3.1 miles)

  • Lowest 15 July, 2026

    64.4 °F

  • Average July

    81.1 °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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