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

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Hazardous Weather Conditions

Current conditions at

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

Lat: 36.48°NLon: 82.4°WElev: 1519ft.

Overcast

77°F

25°C

Humidity 69%
Wind Speed SW 5 mph
Barometer 29.92 in (1010.5 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 1 Aug 11:53 am EDT
Extended Forecast for

Johnson City TN

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly before 4pm. Mostly cloudy, with a high near 85. South wind around 10 mph.

    High: 85 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 70. South wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 87. South wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm, mainly before 2am. Low around 67. Southwest wind around 5 mph becoming calm. Chance of precipitation is 80%.

    Low: 67 °F

    Showers

  • Monday

    Monday: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then showers and thunderstorms likely after 5pm. Partly sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 84 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 60%.

    Low: 66 °F

    T-storms
    Likely then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of thunderstorms before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 84 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 60%.

    High: 85 °F

    Slight Chance
    Showers then
    Showers
    Likely

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly before 4pm. Mostly cloudy, with a high near 85. South wind around 10 mph.
Tonight
A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 70. South wind 5 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 87. South wind 5 to 10 mph. 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 possibly a thunderstorm, mainly before 2am. Low around 67. Southwest wind around 5 mph becoming calm. Chance of precipitation is 80%.
Monday
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then showers and thunderstorms likely after 5pm. Partly sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%.
Monday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 60%.
Tuesday
A slight chance of thunderstorms before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 67. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 68. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Johnson City TN
 36.32°N 82.37°W (Elev. 1699 ft)
Last Update:
7:06 am EDT Aug 1, 2026
Forecast Valid:
12pm EDT Aug 1, 2026-6pm EDT Aug 7, 2026
 
Forecast Discussion
 
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Additional Resources

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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