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

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Hazardous Weather Conditions

Current conditions at

Watauga County Hospital Heliport (KTNB)

Lat: 36.2°NLon: 81.65°WElev: 3146ft.

72°F

22°C

Humidity 79%
Wind Speed NA
Barometer 30.12 in
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 21 Aug 5:15 pm EDT
Extended Forecast for

3 Miles SW Roan Mountain TN

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely. Partly sunny, with a steady temperature around 74. Calm wind. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 74 °F

    T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 11pm. Low around 60. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 79. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 59. Northwest wind around 5 mph. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 75. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 75 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55. West wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 77. Calm wind becoming west around 5 mph in the afternoon.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Showers and thunderstorms likely. Partly sunny, with a steady temperature around 74. Calm wind. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms, mainly before 11pm. Low around 60. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 79. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
A slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 59. Northwest wind around 5 mph. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 75. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 55. West wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 77. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79.
Tuesday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 59.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 79. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 61. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Roan Mountain TN
 36.14°N 82.11°W (Elev. 3422 ft)
Last Update:
2:26 pm EDT Aug 21, 2026
Forecast Valid:
5pm EDT Aug 21, 2026-6pm EDT Aug 28, 2026
 
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