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Hazardous Weather Conditions

Current conditions at

Smithfield, Johnston County Airport (KJNX)

Lat: 35.54°NLon: 78.39°WElev: 164ft.

Fair

70°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 29.90 in
Dewpoint 70°F (21°C)
Visibility 8.00 mi
Last update 14 Jun 4:55 am EDT
Extended Forecast for

Smithfield, Johnston County Airport NC

Heat Advisory June 14, 11:00am until June 14, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 96. Heat index values as high as 104. Light south wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 96 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 73. Southwest wind 6 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Showers
    Likely then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 89. Northwest wind 7 to 9 mph.

    High: 89 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 65. Calm wind. Chance of precipitation is 20%.

    Low: 65 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 85. Northeast wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of thunderstorms before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 98.

    High: 98 °F

    Hot

Detailed Forecast

Today
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 96. Heat index values as high as 104. Light south wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 73. Southwest wind 6 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 89. Northwest wind 7 to 9 mph.
Monday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 65. Calm wind. Chance of precipitation is 20%.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 85. Northeast wind around 6 mph becoming calm in the afternoon. Chance of precipitation is 30%.
Tuesday Night
A chance of thunderstorms before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 72.
Thursday
Mostly sunny and hot, with a high near 98.
Thursday Night
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 76. Chance of precipitation is 30%.
Juneteenth
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 94. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 90.
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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:
2:17 am EDT Jun 14, 2026
Forecast Valid:
5am EDT Jun 14, 2026-6pm EDT Jun 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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