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.

Overcast

77°F

25°C

Humidity 65%
Wind Speed S 7 mph
Barometer 30.06 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 4 Nov 2:15 pm EST
Extended Forecast for

Clayton NC

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 77. Southeast wind around 7 mph.

    High: 77 °F

    Partly Sunny

  • Tonight

    Tonight: A slight chance of showers after 4am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 61. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 61 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A slight chance of showers. Patchy fog before 9am. Otherwise, partly sunny, with a high near 81. South wind 3 to 8 mph. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Thursday Night

    Thursday Night: A slight chance of showers between midnight and 1am, then a slight chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 66. Light south wind. Chance of precipitation is 20%.

    Low: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Friday

    Friday: Showers and thunderstorms likely before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then showers likely after 4pm. High near 73. Calm wind becoming southwest around 6 mph in the morning. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 73 °F

    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 77. Southeast wind around 7 mph.
Tonight
A slight chance of showers after 4am. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 61. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Thursday
A slight chance of showers. Patchy fog before 9am. Otherwise, partly sunny, with a high near 81. South wind 3 to 8 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers between midnight and 1am, then a slight chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 66. Light south wind. Chance of precipitation is 20%.
Friday
Showers and thunderstorms likely before 10am, then showers and possibly a thunderstorm between 10am and 4pm, then showers likely after 4pm. High near 73. Calm wind becoming southwest around 6 mph in the morning. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Sunny, with a high near 66.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Sunny, with a high near 64.
Sunday Night
Mostly clear, with a low around 41.
Monday
Sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Sunny, with a high near 69.
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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 ft)
Last Update:
1:47 pm EST Nov 4, 2026
Forecast Valid:
2pm EST Nov 4, 2026-6pm EST Nov 10, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation