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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Current conditions at

Williamsburg-Whitley County Airport (KBYL)

Lat: 36.8°NLon: 84.2°WElev: 1165ft.

Fair

73°F

23°C

Humidity 99%
Wind Speed Calm
Barometer 30.32 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 17 Sep 2:35 am EDT
Extended Forecast for

Barbourville KY

  • Overnight

    Overnight: Areas of dense fog. Otherwise, mostly clear, with a low around 63. Calm wind.

    Low: 63 °F

    Areas Dense
    Fog

  • Thursday

    Thursday: A slight chance of showers between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Areas of dense fog before 10am. Otherwise, mostly sunny and hot, with a high near 93. Heat index values as high as 99. Calm wind. Chance of precipitation is 30%.

    High: 93 °F

    Areas Dense
    Fog then
    Chance
    Showers

  • Thursday Night

    Thursday Night: Patchy dense fog after midnight. Otherwise, partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Partly Cloudy
    then Patchy
    Dense Fog

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Areas of dense fog before 10am. Otherwise, mostly sunny and hot, with a high near 92. Heat index values as high as 96. Light and variable wind. Chance of precipitation is 30%.

    High: 92 °F

    Areas Dense
    Fog then
    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Chance
    T-storms then
    Patchy Fog

  • Saturday

    Saturday: Patchy fog between 10am and 11am. Otherwise, sunny and hot, with a high near 91.

    High: 91 °F

    Areas Fog
    then Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.

    Low: 68 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 91.

    High: 91 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

Overnight
Areas of dense fog. Otherwise, mostly clear, with a low around 63. Calm wind.
Thursday
A slight chance of showers between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Areas of dense fog before 10am. Otherwise, mostly sunny and hot, with a high near 93. Heat index values as high as 99. Calm wind. Chance of precipitation is 30%.
Thursday Night
Patchy dense fog after midnight. Otherwise, partly cloudy, with a low around 67. Calm wind.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Areas of dense fog before 10am. Otherwise, mostly sunny and hot, with a high near 92. Heat index values as high as 96. Light and variable wind. Chance of precipitation is 30%.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 68. Calm wind.
Saturday
Patchy fog between 10am and 11am. Otherwise, sunny and hot, with a high near 91.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Sunday
Mostly sunny and hot, with a high near 91.
Sunday Night
Partly cloudy, with a low around 68.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 91.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 87. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 64. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Barbourville KY
 36.85°N 83.91°W (Elev. 978 ft)
Last Update:
2:51 am EDT Sep 17, 2026
Forecast Valid:
2am EDT Sep 17, 2026-6pm EDT Sep 23, 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