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

23°F

-5°C

Humidity 93%
Wind Speed Calm
Barometer 30.25 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 14 Feb 3:55 am EST
Extended Forecast for

Smithfield, Johnston County Airport NC

  • Today

    Today: Sunny, with a high near 61. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 61 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 40. Calm wind becoming south around 5 mph.

    Low: 40 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain, mainly after 1pm. High near 58. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 58 °F

    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain. Low around 41. East wind 5 to 9 mph becoming north after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 41 °F

    Rain

  • Washington's Birthday

    Washington's Birthday: A slight chance of rain before 1pm. Partly sunny, with a high near 58. North wind 8 to 10 mph. Chance of precipitation is 20%.

    High: 58 °F

    Slight Chance
    Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 70.

    High: 70 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 61. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tonight
Increasing clouds, with a low around 40. Calm wind becoming south around 5 mph.
Sunday
Rain, mainly after 1pm. High near 58. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain. Low around 41. East wind 5 to 9 mph becoming north after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Washington's Birthday
A slight chance of rain before 1pm. Partly sunny, with a high near 58. North wind 8 to 10 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 35.
Tuesday
Partly sunny, with a high near 65.
Tuesday Night
Mostly cloudy, with a low around 45.
Wednesday
Mostly cloudy, with a high near 70.
Wednesday Night
Mostly cloudy, with a low around 51.
Thursday
Mostly cloudy, with a high near 73.
Thursday Night
Mostly cloudy, with a low around 51.
Friday
A chance of rain. Partly sunny, with a high near 72. Chance of precipitation is 30%.
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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:
2:18 am EST Feb 14, 2026
Forecast Valid:
4am EST Feb 14, 2026-6pm EST Feb 20, 2026
 
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Additional Resources

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Chance of Precipitation