Current conditions at

Smithfield, Johnston County Airport (KJNX)

Lat: 35.54°NLon: 78.39°WElev: 164ft.

Fair

75°F

24°C

Humidity 89%
Wind Speed SW 6 mph
Barometer 29.84 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 18 Jun 2:55 am EDT
Extended Forecast for

2 Miles ENE Smithfield NC

Heat Advisory June 18, 11:00am until June 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: Mostly clear, with a low around 72. Southwest wind around 7 mph.

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 99. Heat index values as high as 108. Southwest wind 13 to 18 mph, with gusts as high as 28 mph.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: A slight chance of showers before 3am, then a chance of showers and thunderstorms between 3am and 4am, then showers likely and possibly a thunderstorm after 4am.  Increasing clouds, with a low around 72. Southwest wind 8 to 13 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Juneteenth

    Juneteenth: Showers and thunderstorms, mainly before 2pm.  High near 88. Southwest wind around 9 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 88 °F

    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 65. Light north wind.

    Low: 65 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 95.

    High: 95 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 72. Southwest wind around 7 mph.
Thursday
Mostly sunny and hot, with a high near 99. Heat index values as high as 108. Southwest wind 13 to 18 mph, with gusts as high as 28 mph.
Thursday Night
A slight chance of showers before 3am, then a chance of showers and thunderstorms between 3am and 4am, then showers likely and possibly a thunderstorm after 4am. Increasing clouds, with a low around 72. Southwest wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Juneteenth
Showers and thunderstorms, mainly before 2pm. High near 88. Southwest wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Partly cloudy, with a low around 65. Light north wind.
Saturday
Sunny, with a high near 91.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Mostly sunny, with a high near 95.
Sunday Night
Partly cloudy, with a low around 73.
Monday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny and hot, with a high near 97. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 91.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Smithfield NC
 35.51°N 78.3°W (Elev. 200 ft)
2:13 am EDT Jun 18, 2026
3am EDT Jun 18, 2026-6pm EDT Jun 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database