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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

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

Lat: 36.48°NLon: 82.4°WElev: 1519ft.

A Few Clouds

84°F

29°C

Humidity 59%
Wind Speed W 3 mph
Barometer 30.16 in (1018.7 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 16 Aug 12:53 pm EDT
Extended Forecast for

Walnut Hill TN

  • This Afternoon

    This Afternoon: Sunny, with a high near 89. Calm wind becoming north around 5 mph.

    High: 89 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, sunny and hot, with a high near 90. Calm wind becoming northwest around 5 mph.

    High: 90 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89. Calm wind becoming north around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. North wind around 5 mph becoming calm.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 91. Calm wind becoming northeast around 5 mph.

    High: 91 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 2am. Mostly clear, with a low around 67.

    Low: 67 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 89. Calm wind becoming north around 5 mph.
Tonight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 66. Calm wind.
Sunday
Patchy fog before 9am. Otherwise, sunny and hot, with a high near 90. Calm wind becoming northwest around 5 mph.
Sunday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 68. Calm wind.
Monday
Sunny, with a high near 89. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 68. North wind around 5 mph becoming calm.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 91. Calm wind becoming northeast around 5 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 2am. Mostly clear, with a low around 67.
Wednesday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 66.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Walnut Hill TN
 36.58°N 82.26°W (Elev. 1798 ft)
Last Update:
1:36 pm EDT Aug 16, 2025
Forecast Valid:
1pm EDT Aug 16, 2025-6pm EDT Aug 22, 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