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

32°C

90°F

Humidity 67%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 25°C (77°F)
Visibility 16 km
Heat Index40°C (104°F)
Last update 13 Jul 11:10 am EDT
Extended Forecast for

Clayton NC

  • Today

    Today: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 34. Heat index values as high as 39. Calm wind. Chance of precipitation is 30%. New rainfall amounts between 2.5 and 5 mm possible.

    High: 34 °C

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 8pm. Areas of fog after 4am. Otherwise, mostly cloudy, with a low around 23. Calm wind. Chance of precipitation is 30%. New precipitation amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Low: 23 °C

    Chance
    T-storms then
    Areas Fog

  • Monday

    Monday: Showers and thunderstorms likely after 2pm. Areas of fog before 8am. Otherwise, partly sunny, with a high near 33. Heat index values as high as 38. South wind 3 to 8 km/h. Chance of precipitation is 60%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    High: 33 °C

    Areas Fog
    then T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 23. Calm wind. Chance of precipitation is 60%. New rainfall amounts between 5 and 7.5 mm possible.

    Low: 23 °C

    T-storms
    Likely

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 2pm. Mostly cloudy, with a high near 31. South wind 3 to 8 km/h. Chance of precipitation is 70%. New rainfall amounts between 2.5 and 5 mm possible.

    High: 31 °C

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 23. Chance of precipitation is 60%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Low: 23 °C

    T-storms
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers between 8am and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 32. Chance of precipitation is 70%.

    High: 32 °C

    Chance
    Showers then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 8pm. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.

    Low: 23 °C

    T-storms
    Likely then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 33. Chance of precipitation is 50%.

    High: 33 °C

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 34. Heat index values as high as 39. Calm wind. Chance of precipitation is 30%. New rainfall amounts between 2.5 and 5 mm possible.
Tonight
A chance of showers and thunderstorms, mainly before 8pm. Areas of fog after 4am. Otherwise, mostly cloudy, with a low around 23. Calm wind. Chance of precipitation is 30%. New precipitation amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Monday
Showers and thunderstorms likely after 2pm. Areas of fog before 8am. Otherwise, partly sunny, with a high near 33. Heat index values as high as 38. South wind 3 to 8 km/h. Chance of precipitation is 60%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Monday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 23. Calm wind. Chance of precipitation is 60%. New rainfall amounts between 5 and 7.5 mm possible.
Tuesday
Showers and thunderstorms likely, mainly after 2pm. Mostly cloudy, with a high near 31. South wind 3 to 8 km/h. Chance of precipitation is 70%. New rainfall amounts between 2.5 and 5 mm possible.
Tuesday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 23. Chance of precipitation is 60%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers between 8am and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 32. Chance of precipitation is 70%.
Wednesday Night
Showers and thunderstorms likely before 8pm. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.
Thursday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 33. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 34. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 33. 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 m)
Last Update:
7:03 am EDT Jul 13, 2025
Forecast Valid:
11am EDT Jul 13, 2025-6pm EDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

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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