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

32°F

0°C

Humidity 100%
Wind Speed Calm
Barometer 30.36 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 25 Mar 4:15 am EDT
Extended Forecast for

Smithfield, Johnston County Airport NC

  • Today

    Today: Mostly sunny, with a high near 67. Light and variable wind.

    High: 67 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 79. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58. South wind 7 to 9 mph.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 86. West wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 42. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 42 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers before 8am. Sunny, with a high near 58. Chance of precipitation is 30%.

    High: 58 °F

    Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 32.

    Low: 32 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 67. Light and variable wind.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 46. Calm wind.
Thursday
Sunny, with a high near 79. Light southwest wind increasing to 5 to 10 mph in the morning.
Thursday Night
Mostly clear, with a low around 58. South wind 7 to 9 mph.
Friday
A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 86. West wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 42. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers before 8am. Sunny, with a high near 58. Chance of precipitation is 30%.
Saturday Night
Clear, with a low around 32.
Sunday
Sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 40.
Monday
Sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
Mostly sunny, with a high near 78.
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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:
2:15 am EDT Mar 25, 2026
Forecast Valid:
4am EDT Mar 25, 2026-6pm EDT Mar 31, 2026
 
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Additional Resources

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