Dangerous, Heat Wave Persists in the Eastern U.S.; Severe Weather Expected in the Central Plains and Mid-Atlantic

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Mid-South, and East Coast. Severe thunderstorms are expected to produce damaging wind gusts from the Upper Ohio Valley into the Mid Atlantic, and across the central Great Plains this afternoon and evening. Large hail and heavy rain is also possible across the Great Plains. Read More >

Current conditions at

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

Lat: 36.48°NLon: 82.4°WElev: 1519ft.

Partly Cloudy

70°F

21°C

Humidity 97%
Wind Speed Calm
Barometer 30.12 in (1017.0 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 4 Jul 6:53 am EDT
Extended Forecast for

Johnson City TN

Heat Advisory July 4, 07:07am until July 4, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 4, 07:07am until July 4, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • Independence Day

    High: 96 °F

    Hot

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 10pm and 2am.  Mostly clear, with a low around 70. Calm wind.  Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly between 3pm and 5pm.  Increasing clouds and hot, with a high near 94. Heat index values as high as 98. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 94 °F

    Sunny then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 11pm, then a chance of showers.  Partly cloudy, with a low around 69. South wind around 5 mph becoming calm.  Chance of precipitation is 60%.

    Low: 69 °F

    T-storms
    Likely then
    Chance
    Showers

  • Monday

    Monday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm.  Mostly sunny and hot, with a high near 91. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 60%.

    High: 91 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am.  Partly cloudy, with a low around 68. South wind around 5 mph becoming calm.  Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm.  High near 88. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 80%.

    High: 88 °F

    Chance
    Showers then
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am.  Low around 68. Chance of precipitation is 80%.

    Low: 68 °F

    T-storms then
    Chance
    T-storms

Detailed Forecast

Independence Day
Sunny and hot, with a high near 96. Heat index values as high as 102. Calm wind becoming west around 5 mph.
Tonight
A slight chance of showers and thunderstorms between 10pm and 2am. Mostly clear, with a low around 70. Calm wind. Chance of precipitation is 20%.
Sunday
Showers and thunderstorms likely, mainly between 3pm and 5pm. Increasing clouds and hot, with a high near 94. Heat index values as high as 98. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and thunderstorms likely before 11pm, then a chance of showers. Partly cloudy, with a low around 69. South wind around 5 mph becoming calm. Chance of precipitation is 60%.
Monday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny and hot, with a high near 91. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 68. South wind around 5 mph becoming calm. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 88. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Low around 68. Chance of precipitation is 80%.
Wednesday
A chance of showers, with thunderstorms also possible after 8am. Partly sunny, with a high near 89. Chance of precipitation is 50%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Thursday
Showers and thunderstorms likely. Mostly sunny, with a high near 89. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 68. Chance of precipitation is 60%.
Friday
Showers and thunderstorms. High near 89. Chance of precipitation is 80%.
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ABOUT THIS FORECAST

 
Point Forecast:
Johnson City TN
 36.34°N 82.37°W (Elev. 1601 ft)
2:26 am EDT Jul 4, 2026
7am EDT Jul 4, 2026-6pm EDT Jul 10, 2026
 
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