Smithfield Weather Forecast

    • 28
    • 68

    Becoming Sunny

    • 27
    • 43

    Mostly Sunny

    • 33
    • 51

    Mostly Sunny

    • 30
    • 54

    Partly Sunny

    • 40
    • 55

    Rain Likely

    • 34
    • 53

    Rain Likely

Today 29 Dec Johnston

Mostly cloudy with a 50 percent chance of rain. Breezy and much warmer with Highs in the upper 60s. Temperature falling into the mid 50s late. West Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 29 Dec Johnston

Clear. Much Colder with Lows in the upper 20s. Northwest Winds 10 to 15 Mph. Gusts up to 35 Mph, decreasing to 25 Mph after midnight.

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Smithfield Temperature Statistics

December Temperature

Smithfield, Johnston County Airport (3.1 miles)

  • Lowest 15 December, 2025

    15.8 °F

  • Average December

    41.6 °F

  • Highest 25 December, 2025

    73.4 °F

Climate (2020–Present)

Smithfield, Johnston County Airport (3.1 miles)

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  • Average Low 2020–2025

    50.8 °F

  • Average 2020–2025

    61.5 °F

  • Average High 2020–2025

    73.3 °F
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