Heavy Rainfall Continues in Hawaii; Severe Thunderstorms and Heavy Rainfall in the Plains and Southern Appalachians

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorms and heavy rainfall will shift into the southern Appalachians today. Strong to severe thunderstorms may produce large hail, scattered wind gusts, and heavy rain today across the northern and central Plains. Read More >

Hazardous Weather Conditions

Current conditions at

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

Lat: 36.48°NLon: 82.4°WElev: 1519ft.

Mostly Cloudy

71°F

22°C

Humidity 90%
Wind Speed Calm
Barometer 30.08 in (1015.9 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 17 Aug 7:53 am EDT
Extended Forecast for

Johnson City TN

  • Today

    Today: Showers and thunderstorms likely, mainly after 5pm.  Mostly sunny and hot, with a high near 91. Heat index values as high as 97. Southwest 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: 91 °F

    Mostly Sunny
    then T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms before midnight, then a slight chance of showers between midnight and 2am.  Low around 69. West wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 69 °F

    T-storms then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm.  Cloudy, then gradually becoming mostly sunny, with a high near 86. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 86 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 63. Northwest wind around 5 mph becoming calm.

    Low: 63 °F

    Chance
    Showers then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Calm wind becoming west around 5 mph.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers.  Mostly cloudy, with a low around 66. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    T-storms

  • Friday

    Friday: A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 87. Chance of precipitation is 70%.

    High: 87 °F

    Slight Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 5pm. Mostly sunny and hot, with a high near 91. Heat index values as high as 97. Southwest 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.
Tonight
Showers and thunderstorms before midnight, then a slight chance of showers between midnight and 2am. Low around 69. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 86. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 63. Northwest wind around 5 mph becoming calm.
Wednesday
Sunny, with a high near 89. Calm wind becoming west around 5 mph.
Wednesday Night
Partly cloudy, with a low around 67. Calm wind.
Thursday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Friday
A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 64. Chance of precipitation is 60%.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Johnson City TN
 36.34°N 82.4°W (Elev. 1699 ft)
7:36 am EDT Aug 17, 2026
8am EDT Aug 17, 2026-6pm EDT Aug 23, 2026
 
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Additional Resources

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