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.

Fog/Mist

70°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 29.87 in
Dewpoint 70°F (21°C)
Visibility 5.00 mi
Last update 23 Aug 5:35 am EDT
Extended Forecast for

Clayton NC

  • Today

    Today: Patchy fog before 7am. Otherwise, sunny, with a high near 88. Light and variable wind becoming northwest 5 to 7 mph in the morning.

    High: 88 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 88. Light and variable wind.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. North wind around 5 mph becoming calm in the afternoon.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers after 2am. Partly cloudy, with a low around 70. Chance of precipitation is 30%.

    Low: 70 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 70%.

    High: 88 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Today
Patchy fog before 7am. Otherwise, sunny, with a high near 88. Light and variable wind becoming northwest 5 to 7 mph in the morning.
Tonight
Mostly clear, with a low around 64. Calm wind.
Monday
Sunny, with a high near 88. Light and variable wind.
Monday Night
Mostly clear, with a low around 65. Calm wind.
Tuesday
Sunny, with a high near 88. North wind around 5 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
Mostly sunny, with a high near 89.
Wednesday Night
A chance of showers after 2am. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 70%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Clayton NC
 35.64°N 78.45°W (Elev. 299 ft)
Last Update:
5:24 am EDT Aug 23, 2026
Forecast Valid:
5am EDT Aug 23, 2026-6pm EDT Aug 29, 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