National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Smithfield, Johnston County Airport (KJNX)

Lat: 35.54°NLon: 78.39°WElev: 164ft.

Fair

72°F

22°C

Humidity 27%
Wind Speed NE 7 mph
Barometer 30.20 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 24 Dec 3:35 pm EST
Extended Forecast for

Smithfield, Johnston County Airport NC

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Cloudy

  • Christmas Day

    Christmas Day: Mostly cloudy, then gradually becoming sunny, with a high near 70. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.

    High: 70 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 42. Light and variable wind becoming northeast 5 to 10 mph after midnight. Winds could gust as high as 18 mph.

    Low: 42 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 51. Northeast wind 5 to 9 mph becoming calm in the afternoon.

    High: 51 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 39. Calm wind.
Christmas Day
Mostly cloudy, then gradually becoming sunny, with a high near 70. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
Mostly cloudy, with a low around 42. Light and variable wind becoming northeast 5 to 10 mph after midnight. Winds could gust as high as 18 mph.
Friday
Mostly cloudy, with a high near 51. Northeast wind 5 to 9 mph becoming calm in the afternoon.
Friday Night
Mostly cloudy, with a low around 43. Calm wind.
Saturday
Sunny, with a high near 70.
Saturday Night
Mostly cloudy, with a low around 42.
Sunday
Mostly cloudy, with a high near 63.
Sunday Night
Mostly cloudy, with a low around 48.
Monday
A chance of showers. Partly sunny, with a high near 65. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Sunny, with a high near 44.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
Sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Smithfield, Johnston County Airport NC
 35.54°N 78.38°W (Elev. 200 ft)
Last Update:
12:27 pm EST Dec 24, 2025
Forecast Valid:
3pm EST Dec 24, 2025-6pm EST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation