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.

Partly Cloudy

73°F

23°C

Humidity 94%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 17 Jun 2:20 am EDT
Extended Forecast for

Smithfield, Johnston County Airport NC

  • Overnight

    Overnight: A chance of showers and thunderstorms, mainly between 3am and 5am. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 3pm. Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 90. Heat index values as high as 101. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 20%.

    High: 90 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74. Calm wind becoming southwest around 5 mph after midnight.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93. Heat index values as high as 101. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. Southwest wind around 7 mph.

    Low: 75 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: A chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. Chance of precipitation is 30%.

    High: 92 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, mainly between 8pm and 2am. Partly cloudy, with a low around 73. Chance of precipitation is 60%.

    Low: 73 °F

    T-storms
    Likely

  • Friday

    Friday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers and thunderstorms, mainly between 3am and 5am. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers and thunderstorms after 3pm. Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 90. Heat index values as high as 101. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 20%.
Tuesday Night
Mostly clear, with a low around 74. Calm wind becoming southwest around 5 mph after midnight.
Wednesday
Sunny, with a high near 93. Heat index values as high as 101. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 75. Southwest wind around 7 mph.
Juneteenth
A chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. Chance of precipitation is 30%.
Thursday Night
Showers and thunderstorms likely, mainly between 8pm and 2am. Partly cloudy, with a low around 73. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 73.
Sunday
Sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 75.
Monday
Mostly sunny, with a high near 95.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Smithfield, Johnston County Airport NC
 35.54°N 78.38°W (Elev. 200 ft)
Last Update:
1:14 am EDT Jun 17, 2025
Forecast Valid:
2am EDT Jun 17, 2025-6pm EDT Jun 23, 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