National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Smithfield, Johnston County Airport (KJNX)

Lat: 35.54°NLon: 78.39°WElev: 164ft.

Fog

48°F

9°C

Humidity 100%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 48°F (9°C)
Visibility 0.50 mi
Last update 8 May 6:55 am EDT
Extended Forecast for

Smithfield, Johnston County Airport NC

Dense Fog Advisory until May 8, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until May 8, 09:00am

    NOW until 9:00am Fri

    Dense Fog Advisory

  • Today

    High: 72 °F

    Areas Dense
    Fog then
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 52. Calm wind.

    Low: 52 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A chance of showers, mainly between 11am and 2pm. Mostly sunny, with a high near 78. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 78 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers after 2pm. Partly sunny, with a high near 83. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 83 °F

    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 59 °F

    Chance
    Showers

  • Monday

    Monday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 76. Chance of precipitation is 80%.

    High: 76 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 8pm. Low around 46. Chance of precipitation is 80%.

    Low: 46 °F

    Showers then
    Partly Cloudy

Detailed Forecast

Today
Areas of dense fog before 10am. Otherwise, sunny, with a high near 72. North wind around 6 mph becoming calm in the afternoon.
Tonight
Increasing clouds, with a low around 52. Calm wind.
Saturday
A chance of showers, mainly between 11am and 2pm. Mostly sunny, with a high near 78. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Partly cloudy, with a low around 58. Calm wind.
Sunday
A chance of showers after 2pm. Partly sunny, with a high near 83. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 76. Chance of precipitation is 80%.
Monday Night
Showers and possibly a thunderstorm before 8pm. Low around 46. Chance of precipitation is 80%.
Tuesday
Sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
A chance of showers. Mostly sunny, with a high near 76. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Thursday
Mostly sunny, with a high near 76.
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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:
5:28 am EDT May 8, 2026
Forecast Valid:
7am EDT May 8, 2026-6pm EDT May 14, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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