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 53%
Wind Speed SW 6 mph
Barometer 29.79 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 22 Mar 10:35 pm EDT
Extended Forecast for

Smithfield, Johnston County Airport NC

  • Tonight

    Tonight: Mostly clear, with a low around 65. Southwest wind 6 to 8 mph.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers after 2pm. Increasing clouds, with a high near 82. Southwest wind 6 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 20%.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 38. North wind 10 to 14 mph, with gusts as high as 28 mph.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 59. Northeast wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 59 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 35 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 65. Southwest wind 6 to 8 mph.
Monday
A slight chance of showers after 2pm. Increasing clouds, with a high near 82. Southwest wind 6 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 38. North wind 10 to 14 mph, with gusts as high as 28 mph.
Tuesday
Mostly sunny, with a high near 59. Northeast wind 8 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Partly cloudy, with a low around 35. Calm wind.
Wednesday
Mostly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 56.
Friday
A chance of showers after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
Friday Night
Showers likely. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Saturday
A chance of showers. Mostly sunny, with a high near 59. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 33.
Sunday
Sunny, with a high near 65.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Smithfield, Johnston County Airport NC
 35.54°N 78.38°W (Elev. 200 ft)
Last Update:
7:09 pm EDT Mar 22, 2026
Forecast Valid:
10pm EDT Mar 22, 2026-6pm EDT Mar 29, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation