Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Many locations are likely to set records for the highest-ever March temperature. Periods of critical fire weather will persist from the central Rockies to the central Plains through Saturday as gusty winds and low relative humidity continue. Read More >

Current conditions at

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

Lat: 36.48°NLon: 82.4°WElev: 1519ft.

Partly Cloudy

59°F

15°C

Humidity 35%
Wind Speed NA
Barometer 30.22 in (1022.3 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 19 Mar 1:53 pm EDT
Extended Forecast for

Jonesborough TN

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 60. West wind around 5 mph.

    High: 60 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 67. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 67 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A slight chance of showers before 11pm, then a slight chance of showers and thunderstorms between 11pm and 2am.  Mostly cloudy, with a low around 52. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers after 2pm.  Partly sunny, with a high near 72. West wind around 5 mph.

    High: 72 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 10 percent chance of showers before 8pm.  Partly cloudy, with a low around 53. Southwest wind around 5 mph becoming calm.

    Low: 53 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 79. West wind 5 to 10 mph.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms after 2am.  Partly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Clear
    then Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms before 8am.  Mostly sunny, with a high near 65.

    High: 65 °F

    Chance
    Showers then
    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 60. West wind around 5 mph.
Tonight
Mostly clear, with a low around 36. Calm wind.
Friday
Increasing clouds, with a high near 67. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Friday Night
A slight chance of showers before 11pm, then a slight chance of showers and thunderstorms between 11pm and 2am. Mostly cloudy, with a low around 52. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Saturday
A 20 percent chance of showers after 2pm. Partly sunny, with a high near 72. West wind around 5 mph.
Saturday Night
A 10 percent chance of showers before 8pm. Partly cloudy, with a low around 53. Southwest wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 79. West wind 5 to 10 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 56.
Monday
A 30 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 35.
Tuesday
Mostly sunny, with a high near 64.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 42.
Wednesday
A 20 percent chance of showers. Mostly cloudy, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Jonesborough TN
 36.28°N 82.49°W (Elev. 1732 ft)
2:25 pm EDT Mar 19, 2026
2pm EDT Mar 19, 2026-6pm EDT Mar 25, 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