Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Hazardous Weather Conditions

Current conditions at

Williamsburg-Whitley County Airport (KBYL)

Lat: 36.8°NLon: 84.2°WElev: 1165ft.

Fair

69°F

21°C

Humidity 99%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 20 Aug 3:15 am EDT
Extended Forecast for

6 Miles NNW Newcomb TN

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 70. Calm wind.

    Low: 70 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before noon.  Patchy fog before 9am.  Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 86. Heat index values as high as 95. Calm wind becoming west southwest around 5 mph in the afternoon.  Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Showers
    Likely and
    Patchy Fog
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 5am, then a chance of showers and thunderstorms after 5am.  Patchy fog after midnight.  Otherwise, mostly cloudy, with a low around 68. Calm wind.  Chance of precipitation is 40%.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 5pm.  Areas of fog before 10am.  Otherwise, partly sunny, with a high near 85. Calm wind.

    High: 85 °F

    Chance
    T-storms and
    Areas Fog

  • Friday Night

    Friday Night: Patchy fog after midnight.  Otherwise, partly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Areas of fog before 9am.  Otherwise, sunny, with a high near 86.

    High: 86 °F

    Areas Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 70. Calm wind.
Thursday
Showers and thunderstorms likely, mainly before noon. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 86. Heat index values as high as 95. Calm wind becoming west southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 5am, then a chance of showers and thunderstorms after 5am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 40%.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Areas of fog before 10am. Otherwise, partly sunny, with a high near 85. Calm wind.
Friday Night
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 65. Calm wind.
Saturday
Areas of fog before 9am. Otherwise, sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 64.
Sunday
Sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 60.
Monday
Sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Newcomb TN
 36.63°N 84.24°W (Elev. 1158 ft)
2:16 am EDT Aug 20, 2026
3am EDT Aug 20, 2026-6pm EDT Aug 26, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database