Current conditions at

Smithfield, Johnston County Airport (KJNX)

Lat: 35.54° N Lon: 78.39° W Elev: 164 ft.

A Few Clouds

77°F

25°C

Humidity 44%
Wind Speed S 14 mph
Barometer 29.96 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 5 May 6:35 pm EDT
Detailed forecast for

Johnston County

Tonight
Mostly clear. Lows in the upper 50s. South winds 10 to 15 mph.
Wednesday
Mostly cloudy. A slight chance of showers in the afternoon. Highs in the mid 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.
Wednesday Night
Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 60s. Southwest winds 5 to 10 mph. Chance of rain 70 percent.
Thursday
Showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Not as warm with highs in the mid 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain near 100 percent.
Thursday Night
Showers with a chance of thunderstorms in the evening, then showers likely after midnight. Cooler with lows in the lower 50s. North winds 5 to 10 mph. Chance of rain 90 percent.
Friday
Partly sunny with a 20 percent chance of showers. Highs around 70.
Friday Night
Partly cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 50s. Chance of rain 30 percent.
Saturday
Partly sunny with a 40 percent chance of showers. Highs in the upper 70s.
Saturday Night And Sunday
Mostly clear. Lows in the upper 50s. Highs in the mid 80s.
Sunday Night
Partly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 40 percent.
Monday And Monday Night
Mostly cloudy with showers likely with a chance of thunderstorms. Highs in the lower 80s. Lows in the mid 50s. Chance of rain 70 percent.
Tuesday
Mostly sunny. Highs in the mid 70s.



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408 PM EDT Tue May 5 2026
 
 

Additional Resources

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