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

72°F

22°C

Humidity 94%
Wind Speed Calm
Barometer 29.91 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 14 Jun 3:15 am EDT
Extended Forecast for

Clayton NC

Heat Advisory June 14, 11:00am until June 14, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Mostly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms, mainly after 3pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 104. Calm wind becoming southwest 5 to 9 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 97 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 73. Southwest wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Showers
    Likely then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 89. North wind 6 to 8 mph.

    High: 89 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66. Light and variable wind.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 85. Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tuesday Night

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

    Low: 67 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 72. Calm wind.
Sunday
A chance of showers and thunderstorms, mainly after 3pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 104. Calm wind becoming southwest 5 to 9 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms likely, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 73. Southwest wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 89. North wind 6 to 8 mph.
Monday Night
Partly cloudy, with a low around 66. Light and variable wind.
Tuesday
A slight chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 85. Chance of precipitation is 20%.
Tuesday Night
Mostly cloudy, with a low around 67.
Wednesday
Mostly sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
Mostly sunny and hot, with a high near 98.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 76. Chance of precipitation is 30%.
Juneteenth
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 94. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clayton NC
 35.66°N 78.45°W (Elev. 200 ft)
Last Update:
2:17 am EDT Jun 14, 2026
Forecast Valid:
3am EDT Jun 14, 2026-6pm EDT Jun 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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