Current conditions at

Smithfield, Johnston County Airport (KJNX)

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

Fair

79°F

26°C

Humidity 48%
Wind Speed Calm
Barometer 30.24 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 3 Oct 5:00 pm EDT
Detailed forecast for

Johnston County

Tonight
Mostly clear. Lows in the lower 50s. Northeast winds around 5 mph this evening, becoming light and variable.
Saturday
Mostly sunny. Highs around 80. Northeast winds around 5 mph.
Saturday Night
Partly cloudy. Lows in the mid 50s. Northeast winds around 5 mph in the evening, becoming light and variable.
Sunday
Partly sunny. Highs in the lower 80s. East winds around 5 mph.
Sunday Night
Partly cloudy. Lows around 60. East winds around 5 mph.
Monday Through Tuesday
Mostly clear. Highs in the lower 80s. Lows in the lower 60s.
Tuesday Night And Wednesday
Partly cloudy. Lows in the mid 60s. Highs in the lower 80s.
Wednesday Night
Mostly cloudy. Lows around 60.
Thursday Through Friday
Partly cloudy. Highs in the lower 70s. Lows in the mid 50s.



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407 PM EDT Fri Oct 3 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database