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

57°F

14°C

Humidity 48%
Wind Speed SW 9 mph
Barometer 29.77 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 2 Jan 4:55 pm EST
Extended Forecast for

Smithfield, Johnston County Airport NC

  • Tonight

    Tonight: Cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Cloudy

  • Saturday

    Saturday: Rain, mainly after 8am. High near 43. Northeast wind 5 to 8 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Chance Rain
    then Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 31. Northeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Rain Likely
    then Mostly
    Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 52. Calm wind becoming north around 6 mph.

    High: 52 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28. Calm wind.

    Low: 28 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Tuesday Night

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

    Low: 45 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, with a low around 39. Calm wind.
Saturday
Rain, mainly after 8am. High near 43. Northeast wind 5 to 8 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 31. Northeast wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 52. Calm wind becoming north around 6 mph.
Sunday Night
Partly cloudy, with a low around 28. Calm wind.
Monday
Mostly sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Partly sunny, with a high near 64.
Tuesday Night
Mostly cloudy, with a low around 45.
Wednesday
Mostly cloudy, with a high near 69.
Wednesday Night
Mostly cloudy, with a low around 44.
Thursday
Partly sunny, with a high near 67.
Thursday Night
Mostly cloudy, with a low around 47.
Friday
Partly sunny, with a high near 71.
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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:
3:27 pm EST Jan 2, 2026
Forecast Valid:
5pm EST Jan 2, 2026-6pm EST Jan 9, 2026
 
Forecast Discussion
 
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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