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

61°F

16°C

Humidity 59%
Wind Speed NW 5 mph
Barometer 29.93 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 11 Jan 7:55 am EST
Extended Forecast for

Smithfield, Johnston County Airport NC

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a temperature rising to near 58 by 10am, then falling to around 47 during the remainder of the day. Northwest wind 10 to 16 mph, with gusts as high as 36 mph.

    High: 58 °F⇓

    Decreasing
    Clouds

  • Tonight

    Tonight: Clear, with a low around 25. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 22 mph.

    Low: 25 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 51. Calm wind.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 27. Calm wind.

    Low: 27 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 59. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain before 1pm. Mostly sunny, with a high near 49. Chance of precipitation is 30%.

    High: 49 °F

    Chance Rain

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a temperature rising to near 58 by 10am, then falling to around 47 during the remainder of the day. Northwest wind 10 to 16 mph, with gusts as high as 36 mph.
Tonight
Clear, with a low around 25. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 22 mph.
Monday
Sunny, with a high near 51. Calm wind.
Monday Night
Mostly clear, with a low around 27. Calm wind.
Tuesday
Sunny, with a high near 59. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 35.
Wednesday
Mostly cloudy, with a high near 59.
Wednesday Night
Mostly cloudy, with a low around 33.
Thursday
A chance of rain before 1pm. Mostly sunny, with a high near 49. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 23.
Friday
Sunny, with a high near 47.
Friday Night
Mostly clear, with a low around 27.
Saturday
Mostly sunny, with a high near 53.
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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:
6:32 am EST Jan 11, 2026
Forecast Valid:
8am EST Jan 11, 2026-6pm EST Jan 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation