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.

Overcast

43°F

6°C

Humidity 81%
Wind Speed N 6 mph
Barometer 30.45 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 3 Mar 3:35 am EST
Extended Forecast for

Smithfield, Johnston County Airport NC

  • Overnight

    Overnight: Cloudy, with a low around 42. Northeast wind around 7 mph.

    Low: 42 °F

    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 62. Northeast wind around 6 mph becoming calm in the morning.

    High: 62 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Areas of fog after 3am. Otherwise, mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Cloudy
    then Areas
    Fog

  • Wednesday

    Wednesday: Areas of fog before 9am. Otherwise, partly sunny, with a high near 77. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 77 °F

    Areas Fog
    then Partly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 53. Light south wind.

    Low: 53 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Overnight
Cloudy, with a low around 42. Northeast wind around 7 mph.
Tuesday
Mostly cloudy, with a high near 62. Northeast wind around 6 mph becoming calm in the morning.
Tuesday Night
Areas of fog after 3am. Otherwise, mostly cloudy, with a low around 48. Calm wind.
Wednesday
Areas of fog before 9am. Otherwise, partly sunny, with a high near 77. Calm wind becoming southwest 5 to 7 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 53. Light south wind.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Mostly cloudy, with a low around 57.
Friday
Partly sunny, with a high near 82.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 83.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 50%.
Monday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 50%.
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:
3:38 am EST Mar 3, 2026
Forecast Valid:
3am EST Mar 3, 2026-6pm EDT Mar 9, 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