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

Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. 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

25°F

-4°C

Humidity 78%
Wind Speed Calm
Barometer 30.26 in (1025.0 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 18 Mar 1:53 am EDT
Extended Forecast for

Johnson City TN

  • Overnight

    Overnight: Mostly cloudy, with a low around 18. Calm wind.

    Low: 18 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of flurries between 8am and noon, then a slight chance of sprinkles after noon. Partly sunny, with a high near 47. Calm wind becoming west around 5 mph in the afternoon.

    High: 47 °F

    Slight Chance
    Sprinkles/Flurries

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 59. Calm wind becoming west around 5 mph in the afternoon.

    High: 59 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Slight Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 66. Calm wind becoming west around 5 mph in the afternoon.

    High: 66 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 18. Calm wind.
Wednesday
A slight chance of flurries between 8am and noon, then a slight chance of sprinkles after noon. Partly sunny, with a high near 47. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 31. Calm wind.
Thursday
Partly sunny, with a high near 59. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 42. Calm wind.
Friday
Partly sunny, with a high near 66. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 45. Calm wind.
Saturday
Partly sunny, with a high near 71.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Sunny, with a high near 77.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 48.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 65.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 39.
Tuesday
A slight chance of rain and snow showers. Mostly sunny, with a high near 59. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Johnson City TN
 36.32°N 82.34°W (Elev. 1696 ft)
Last Update:
1:06 am EDT Mar 18, 2026
Forecast Valid:
2am EDT Mar 18, 2026-6pm EDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation