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.

Mostly Cloudy

99°F

37°C

Humidity 37%
Wind Speed S 8 mph
Barometer 29.86 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 5 Jul 3:55 pm EDT
Extended Forecast for

2 Miles SSE Clayton NC

Heat Advisory July 5, 04:17pm until July 5, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 5, 04:17pm until July 5, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • This Afternoon

    High: 98 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 76. South wind 3 to 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 76 °F

    Chance
    T-storms

  • Monday

    Monday: Showers and thunderstorms likely, mainly after 3pm. Partly sunny, with a high near 95. Heat index values as high as 103. Southwest wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 95 °F

    Partly Sunny
    then T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, with a low around 75. South wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 75 °F

    Showers
    Likely then
    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 94. Southwest wind 5 to 7 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 94 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Chance of precipitation is 30%.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms. Mostly sunny and hot, with a high near 98. Heat index values as high as 104. South wind around 6 mph. Chance of precipitation is 20%.
Tonight
A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 76. South wind 3 to 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and thunderstorms likely, mainly after 3pm. Partly sunny, with a high near 95. Heat index values as high as 103. Southwest wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and thunderstorms likely, mainly before 10pm. Mostly cloudy, with a low around 75. South wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 94. Southwest wind 5 to 7 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 95.
Thursday Night
Partly cloudy, with a low around 75.
Friday
Sunny and hot, with a high near 98.
Friday Night
Partly cloudy, with a low around 76.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 96. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSE Clayton NC
 35.62°N 78.45°W (Elev. 200 ft)
Last Update:
2:14 pm EDT Jul 5, 2026
Forecast Valid:
4pm EDT Jul 5, 2026-6pm EDT Jul 12, 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