Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Current conditions at

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

Lat: 36.48°NLon: 82.4°WElev: 1519ft.

Fair

79°F

26°C

Humidity 65%
Wind Speed Calm
Barometer 30.21 in (1020.3 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 29 Aug 10:53 am EDT
Extended Forecast for

Johnson City TN

  • Today

    Today: A slight chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 5pm.  Sunny, with a high near 89. Calm wind becoming southeast around 5 mph.  Chance of precipitation is 20%.

    High: 89 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 65. East wind around 5 mph.

    Low: 65 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 89. Calm wind.

    High: 89 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 66. Calm wind becoming southeast around 5 mph.

    Low: 66 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 90. Calm wind becoming northwest around 5 mph.

    High: 90 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 92. Calm wind becoming northwest around 5 mph.

    High: 92 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 93.

    High: 93 °F

    Hot

Detailed Forecast

Today
A slight chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 89. Calm wind becoming southeast around 5 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 65. East wind around 5 mph.
Sunday
Mostly sunny, with a high near 89. Calm wind.
Sunday Night
Partly cloudy, with a low around 66. Calm wind becoming southeast around 5 mph.
Monday
Sunny and hot, with a high near 90. Calm wind becoming northwest around 5 mph.
Monday Night
Mostly clear, with a low around 68. Calm wind.
Tuesday
Sunny and hot, with a high near 92. Calm wind becoming northwest around 5 mph.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Sunny and hot, with a high near 93.
Wednesday Night
Partly cloudy, with a low around 70.
Thursday
A 30 percent chance of showers and thunderstorms. Sunny and hot, with a high near 93.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Friday
A 50 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
Johnson City TN
 36.32°N 82.37°W (Elev. 1699 ft)
7:06 am EDT Aug 29, 2026
11am EDT Aug 29, 2026-6pm EDT Sep 4, 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