National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rain in the Southern Appalachians; Fire Weather and Heat in the West; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding today. Gusty winds and low relative humidity will bring critical fire weather conditions to parts of the Great Basin and northern Rockies today and Thursday. Hot to extremely hot temperatures are in place through today across parts of the western U.S. Read More >

Current conditions at

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

Lat: 36.48°NLon: 82.4°WElev: 1519ft.

Overcast

76°F

24°C

Humidity 88%
Wind Speed SW 10 mph
Barometer 30.01 in (1013.7 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 13 Aug 3:53 pm EDT
Extended Forecast for

Johnson City TN

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 77. West wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.

    Low: 67 °F

    Chance
    T-storms then
    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Patchy fog before 10am. Otherwise, partly sunny, with a high near 84. Calm wind becoming west around 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    T-storms and
    Patchy Fog

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 11pm. Patchy fog between 1am and 2am. Otherwise, partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Slight Chance
    T-storms then
    Patchy Fog

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Calm wind.

    High: 87 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 86. Calm wind.

    High: 86 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 66.

    Low: 66 °F

    Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 88.

    High: 88 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 77. West wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Patchy fog before 10am. Otherwise, partly sunny, with a high near 84. Calm wind becoming west around 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 20 percent chance of showers and thunderstorms before 11pm. Patchy fog between 1am and 2am. Otherwise, partly cloudy, with a low around 67. Calm wind.
Friday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Calm wind.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 67. Calm wind.
Saturday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 86. Calm wind.
Saturday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 66.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 66.
Monday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 89.
Monday Night
A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 66.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Johnson City TN
 36.32°N 82.4°W (Elev. 1726 ft)
Last Update:
1:52 pm EDT Aug 13, 2025
Forecast Valid:
4pm EDT Aug 13, 2025-6pm EDT Aug 20, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation