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

70°F

21°C

Humidity 88%
Wind Speed Calm
Barometer 29.83 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 29 Jul 11:55 pm EDT
Extended Forecast for

Clayton NC

  • Overnight

    Overnight: Clear, with a low around 66. Light north wind.

    Low: 66 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86. Northwest wind 3 to 6 mph.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88. Calm wind.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 69. Calm wind.

    Low: 69 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 70.

    Low: 70 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 60%.

    High: 85 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

    Low: 71 °F

    Showers
    Likely

Detailed Forecast

Overnight
Clear, with a low around 66. Light north wind.
Thursday
Sunny, with a high near 86. Northwest wind 3 to 6 mph.
Thursday Night
Mostly clear, with a low around 66. Calm wind.
Friday
Sunny, with a high near 88. Calm wind.
Friday Night
Mostly clear, with a low around 69. Calm wind.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Mostly cloudy, with a low around 70.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 70%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 50%.
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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:
6:16 pm EDT Jul 29, 2026
Forecast Valid:
12am EDT Jul 30, 2026-6pm EDT Aug 5, 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