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

68°F

20°C

Humidity 88%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 25 Jun 7:55 am EDT
Extended Forecast for

Smithfield NC

  • Today

    Today: Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 91 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 69. Calm wind becoming south around 5 mph.

    Low: 69 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 95. Heat index values as high as 100. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 95 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 73. South wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 96. Southwest wind 6 to 8 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 96 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday 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

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 40%.

    High: 95 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 71. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 69. Calm wind becoming south around 5 mph.
Friday
Mostly sunny, with a high near 95. Heat index values as high as 100. Calm wind becoming southwest 5 to 7 mph in the morning.
Friday Night
A chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 73. South wind 3 to 5 mph. Chance of precipitation is 30%.
Saturday
A chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 96. Southwest wind 6 to 8 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday 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.
Sunday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 69.
Tuesday
Sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 72.
Wednesday
Sunny and hot, with a high near 99.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Smithfield NC
 35.52°N 78.36°W (Elev. 184 ft)
Last Update:
6:03 am EDT Jun 25, 2026
Forecast Valid:
8am EDT Jun 25, 2026-6pm EDT Jul 1, 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