Current conditions at

Smithfield, Johnston County Airport (KJNX)

Lat: 35.54°NLon: 78.39°WElev: 164ft.

Fair

75°F

24°C

Humidity 94%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 16 Aug 11:55 pm EDT
Extended Forecast for

5 Miles S Middlesex NC

Heat Advisory August 17, 11:00am until August 17, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: Partly cloudy, with a low around 75. South wind around 5 mph becoming calm.

    Low: 75 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 97. Heat index values as high as 106. West wind 5 to 7 mph.  Chance of precipitation is 20%.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers.  Partly cloudy, with a low around 74. Calm wind.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 74 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 94. Heat index values as high as 103. Light north wind.

    High: 94 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 96. Chance of precipitation is 30%.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 72. Chance of precipitation is 50%.

    Low: 72 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 75. South wind around 5 mph becoming calm.
Monday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 106. West wind 5 to 7 mph. Chance of precipitation is 20%.
Monday Night
A chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers. Partly cloudy, with a low around 74. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Mostly sunny, with a high near 94. Heat index values as high as 103. Light north wind.
Tuesday Night
Mostly clear, with a low around 72. Calm wind.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 50%.
Friday
Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Sunday
Partly sunny, with a high near 87.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Middlesex NC
 35.73°N 78.19°W (Elev. 154 ft)
10:57 pm EDT Aug 16, 2026
12am EDT Aug 17, 2026-6pm EDT Aug 23, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database