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

68°F

20°C

Humidity 60%
Wind Speed SW 8 mph
Barometer 29.74 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 23 Mar 3:55 am EDT
Extended Forecast for

Smithfield, Johnston County Airport NC

  • Today

    Today: Isolated showers between 1pm and 2pm. Increasing clouds, with a high near 82. Southwest wind 7 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 20%.

    High: 82 °F

    Sunny then
    Isolated
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 39. North wind 11 to 13 mph, with gusts as high as 26 mph.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 57. Northeast wind 8 to 10 mph.

    High: 57 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 67. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.

    High: 84 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Isolated showers between 1pm and 2pm. Increasing clouds, with a high near 82. Southwest wind 7 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 39. North wind 11 to 13 mph, with gusts as high as 26 mph.
Tuesday
Mostly sunny, with a high near 57. Northeast wind 8 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 35. Calm wind.
Wednesday
Mostly sunny, with a high near 67. Calm wind becoming southeast around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 55.
Friday
A chance of showers after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
Friday Night
Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Saturday
A chance of showers. Mostly sunny, with a high near 58. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 33.
Sunday
Sunny, with a high near 63.
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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:
2:24 am EDT Mar 23, 2026
Forecast Valid:
4am EDT Mar 23, 2026-6pm EDT Mar 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation