Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Current conditions at

Smithfield, Johnston County Airport (KJNX)

Lat: 35.54°NLon: 78.39°WElev: 164ft.

Fair

34°F

1°C

Humidity 51%
Wind Speed N 3 mph
Barometer 30.28 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 18 Mar 1:55 am EDT
Extended Forecast for

Smithfield, Johnston County Airport NC

  • Overnight

    Overnight: Partly cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 50. Calm wind becoming northeast around 5 mph.

    High: 50 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. Calm wind.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 61. Calm wind.

    High: 61 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 67.

    High: 67 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 25. Calm wind.
Wednesday
Partly sunny, with a high near 50. Calm wind becoming northeast around 5 mph.
Wednesday Night
Partly cloudy, with a low around 29. Calm wind.
Thursday
Mostly sunny, with a high near 61. Calm wind.
Thursday Night
Mostly cloudy, with a low around 38. Calm wind.
Friday
Mostly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Mostly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
Smithfield, Johnston County Airport NC
 35.54°N 78.38°W (Elev. 200 ft)
8:21 pm EDT Mar 17, 2026
2am EDT Mar 18, 2026-6pm EDT Mar 24, 2026
 
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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