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 29%
Wind Speed N 12 mph
Barometer 30.24 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 11 Jan 6:55 pm EST
Extended Forecast for

Smithfield, Johnston County Airport NC

  • Tonight

    Tonight: Clear, with a low around 27. Northwest wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 26 mph.

    Low: 27 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 50. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 28. Calm wind.

    Low: 28 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 58. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 58 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 33. South wind 3 to 6 mph.

    Low: 33 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain after 7am, mixing with snow after 5pm. Partly sunny, with a high near 50. Chance of precipitation is 40%.

    High: 50 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: A chance of snow before 7pm. Partly cloudy, with a low around 22. Chance of precipitation is 30%.

    Low: 22 °F

    Chance Snow
    then Mostly
    Clear

Detailed Forecast

Tonight
Clear, with a low around 27. Northwest wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 26 mph.
Monday
Sunny, with a high near 50. Calm wind becoming southwest around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 28. Calm wind.
Tuesday
Sunny, with a high near 58. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 33. South wind 3 to 6 mph.
Wednesday
Mostly cloudy, with a high near 58.
Wednesday Night
Mostly cloudy, with a low around 36.
Thursday
A chance of rain after 7am, mixing with snow after 5pm. Partly sunny, with a high near 50. Chance of precipitation is 40%.
Thursday Night
A chance of snow before 7pm. Partly cloudy, with a low around 22. Chance of precipitation is 30%.
Friday
Sunny, with a high near 45.
Friday Night
Mostly clear, with a low around 24.
Saturday
Mostly sunny, with a high near 51.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
A chance of rain and snow. Partly sunny, with a high near 48. Chance of precipitation is 30%.
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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:
6:28 pm EST Jan 11, 2026
Forecast Valid:
7pm EST Jan 11, 2026-6pm EST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation