Excessive Heat for the East; Excessive Rainfall for the Southwest; Severe Weather for the Center of the Nation

Extreme HeatRisk impacts will expand from the Midwest into the Mid-Atlantic and Northeast today. This level of HeatRisk is known for being rare and/or long duration with little to no overnight relief, and affects anyone without effective cooling and/or adequate hydration. Severe weather potential continues from the Great Lakes to the Central Plains today. Heavy rainfall for Southwest on Tuesday. Read More >

Current conditions at

Bristol / Johnson / Kingsport, Tri-City Regional Airport (KTRI)

Lat: 36.48°NLon: 82.4°WElev: 1519ft.

Partly Cloudy

91°F

33°C

Humidity 44%
Wind Speed Calm
Barometer 30.23 in (1021.0 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 23 Jun 5:53 pm EDT
Extended Forecast for

Johnson City TN

Heat Advisory June 24, 01:00pm until June 25, 07:00pm
Click here for hazard details and duration
Heat Advisory
  • Tonight

    Tonight: Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 95. Heat index values as high as 101. Calm wind.

    High: 95 °F

    Hot

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 11pm.  Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 94. Heat index values as high as 100. Calm wind.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 11am.  Mostly sunny and hot, with a high near 92. Calm wind becoming northwest around 5 mph.  Chance of precipitation is 50%.

    High: 92 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Chance
    T-storms

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 2pm.  Mostly sunny and hot, with a high near 90. Chance of precipitation is 70%.

    High: 90 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 8pm.  Partly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    T-storms
    Likely then
    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 70. Calm wind.
Tuesday
Sunny and hot, with a high near 95. Heat index values as high as 101. Calm wind.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 70. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 94. Heat index values as high as 100. Calm wind.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 69. Calm wind.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 92. Calm wind becoming northwest around 5 mph. Chance of precipitation is 50%.
Thursday Night
A 40 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 68. Calm wind.
Friday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny and hot, with a high near 90. Chance of precipitation is 70%.
Friday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 68. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 68. Chance of precipitation is 60%.
Sunday
Showers and thunderstorms likely. Mostly sunny, with a high near 89. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Monday
Showers and thunderstorms likely. Mostly sunny, with a high near 88. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
Johnson City TN
 36.34°N 82.4°W (Elev. 1699 ft)
6:24 pm EDT Jun 23, 2025
6pm EDT Jun 23, 2025-6pm EDT Jun 30, 2025
 
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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