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.

Fair

81°F

27°C

Humidity 84%
Wind Speed S 5 mph
Barometer 30.01 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 17 Jul 11:35 pm EDT
Extended Forecast for

Smithfield NC

  • Tonight

    Tonight: Partly cloudy, with a low around 74. Light south wind.

    Low: 74 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 98. Heat index values as high as 110. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 98 °F

    Hot

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 2am. Mostly cloudy, with a low around 76. Southwest wind 7 to 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 76 °F

    Showers
    Likely then
    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers before 8am, then showers and possibly a thunderstorm after 2pm. High near 94. Heat index values as high as 105. West wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 94 °F

    Chance
    Showers then
    T-storms

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 72. Calm wind. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 72 °F

    T-storms then
    Showers

  • Monday

    Monday: Showers likely before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 89. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Showers
    Likely then
    T-storms

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 72. Chance of precipitation is 80%.

    Low: 72 °F

    T-storms then
    Chance
    T-storms

  • Tuesday

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

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 74. Light south wind.
Saturday
Mostly sunny and hot, with a high near 98. Heat index values as high as 110. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Showers and thunderstorms likely, mainly before 2am. Mostly cloudy, with a low around 76. Southwest wind 7 to 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers before 8am, then showers and possibly a thunderstorm after 2pm. High near 94. Heat index values as high as 105. West wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and possibly a thunderstorm. Low around 72. Calm wind. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Monday
Showers likely before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 89. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 72. Chance of precipitation is 80%.
Tuesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 93. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. Chance of precipitation is 30%.
Wednesday
Showers and thunderstorms likely after 2pm. Partly sunny, with a high near 94. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 71. Chance of precipitation is 70%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Friday
A chance of showers. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Smithfield NC
 35.51°N 78.33°W (Elev. 180 ft)
Last Update:
9:40 pm EDT Jul 17, 2026
Forecast Valid:
11pm EDT Jul 17, 2026-6pm EDT Jul 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