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.

Fair

82°F

28°C

Humidity 66%
Wind Speed S 7 mph
Barometer 30.05 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 1 Jul 9:56 pm EDT
Extended Forecast for

Clayton NC

  • Tonight

    Tonight: Clear, with a low around 70. South wind 3 to 6 mph.

    Low: 70 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97. Heat index values as high as 103. Light and variable wind becoming southeast around 5 mph in the afternoon.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 72. Southeast wind 3 to 5 mph.

    Low: 72 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 99. Heat index values as high as 104. Light and variable wind.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. Light southwest wind.

    Low: 75 °F

    Mostly Clear

  • Independence Day

    Independence Day: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Clear, with a low around 70. South wind 3 to 6 mph.
Thursday
Sunny and hot, with a high near 97. Heat index values as high as 103. Light and variable wind becoming southeast around 5 mph in the afternoon.
Thursday Night
Clear, with a low around 72. Southeast wind 3 to 5 mph.
Friday
Sunny and hot, with a high near 99. Heat index values as high as 104. Light and variable wind.
Friday Night
Mostly clear, with a low around 75. Light southwest wind.
Independence Day
Sunny and hot, with a high near 100.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny and hot, with a high near 101.
Sunday Night
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 100. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Chance of precipitation is 50%.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny and hot, with a high near 97. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 93. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clayton NC
 35.64°N 78.45°W (Elev. 299 ft)
Last Update:
7:10 pm EDT Jul 1, 2026
Forecast Valid:
10pm EDT Jul 1, 2026-6pm EDT Jul 8, 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