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

75°F

24°C

Humidity 69%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 17 May 8:55 pm EDT
Extended Forecast for

Clayton NC

  • Tonight

    Tonight: Mostly clear, with a low around 67. South wind 3 to 6 mph.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 93. South wind 5 to 7 mph.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65. South wind 5 to 8 mph.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92. Southwest wind 5 to 7 mph.

    High: 92 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66. South wind 5 to 8 mph.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Thursday

    Thursday: Showers and possibly a thunderstorm, mainly after 2pm. High near 86. Chance of precipitation is 80%.

    High: 86 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 61. Chance of precipitation is 80%.

    Low: 61 °F

    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 67. South wind 3 to 6 mph.
Monday
Sunny, with a high near 93. South wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 65. South wind 5 to 8 mph.
Tuesday
Sunny, with a high near 92. Southwest wind 5 to 7 mph.
Tuesday Night
Mostly clear, with a low around 66. South wind 5 to 8 mph.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Showers and possibly a thunderstorm, mainly after 2pm. High near 86. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 61. Chance of precipitation is 80%.
Friday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 70%.
Friday Night
Showers likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Saturday
Showers likely. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Sunday
Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 80%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Clayton NC
 35.66°N 78.48°W (Elev. 299 ft)
Last Update:
7:50 pm EDT May 17, 2026
Forecast Valid:
9pm EDT May 17, 2026-6pm EDT May 24, 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