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

43°F

6°C

Humidity 66%
Wind Speed NE 8 mph
Barometer 30.36 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 2 Mar 3:15 am EST
Extended Forecast for

Smithfield, Johnston County Airport NC

  • Overnight

    Overnight: Mostly cloudy, with a low around 41. Northeast wind around 11 mph, with gusts as high as 26 mph.

    Low: 41 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of rain, mainly after 3pm. Cloudy, with a high near 52. Northeast wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

    High: 52 °F

    Mostly Cloudy
    then Chance
    Rain

  • Monday Night

    Monday Night: A chance of rain, mainly between 1am and 3am. Cloudy, with a low around 39. Northeast wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

    Low: 39 °F

    Chance Rain

  • Tuesday

    Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 63. Light and variable wind.

    High: 63 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 41. Northeast wind around 11 mph, with gusts as high as 26 mph.
Monday
A chance of rain, mainly after 3pm. Cloudy, with a high near 52. Northeast wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Monday Night
A chance of rain, mainly between 1am and 3am. Cloudy, with a low around 39. Northeast wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Tuesday
Cloudy, then gradually becoming mostly sunny, with a high near 63. Light and variable wind.
Tuesday Night
Partly cloudy, with a low around 48. Calm wind.
Wednesday
Mostly sunny, with a high near 76.
Wednesday Night
Mostly cloudy, with a low around 54.
Thursday
Partly sunny, with a high near 80.
Thursday Night
Mostly cloudy, with a low around 58.
Friday
Partly sunny, with a high near 82.
Friday Night
Mostly clear, with a low around 58.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
A chance of rain. Partly sunny, with a high near 79. Chance of precipitation is 50%.
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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:
1:32 am EST Mar 2, 2026
Forecast Valid:
3am EST Mar 2, 2026-6pm EDT Mar 8, 2026
 
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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