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

Extreme Heat Lingers; Severe Thunderstorms for Portions of the Plains and Southeast; Heavy Rainfall Threats

Gusty winds and heavy rainfall may impact the Big Island of Hawaii as a nearby tropical system passes west of the islands. From the Southwest U.S., Rockies and across the Gulf Coast, heavy rainfall could lead to isolated flash flooding. Severe thunderstorms are expected for areas of the Plains, Gulf Coast and Southeast through Tuesday. Extreme heat lingers for the southern Plains and Southwest. Read More >

Current conditions at

Clyde A. Thomas Regional Airport (KSYM)

Lat: 38.22°NLon: 83.59°WElev: 1047ft.

A Few Clouds

61°F

16°C

Humidity 94%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 59°F (15°C)
Visibility 9.00 mi
Last update 24 Aug 7:43 am EDT
Extended Forecast for

Isonville KY

  • Today

    Today: Sunny, with a high near 80. Light northwest wind.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, sunny, with a high near 82. Light and variable wind.

    High: 82 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87. Light and variable wind.

    High: 87 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 2am. Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 65.

    Low: 65 °F

    Slight Chance
    T-storms

  • Friday

    Friday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 80. Light northwest wind.
Tonight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 56. Calm wind.
Tuesday
Patchy fog before 9am. Otherwise, sunny, with a high near 82. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 57. Calm wind.
Wednesday
Mostly sunny, with a high near 87. Light and variable wind.
Wednesday Night
A 20 percent chance of showers after 2am. Partly cloudy, with a low around 65.
Thursday
A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 20%.
Thursday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 65.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 63.
Saturday
Sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 65.
Sunday
Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Isonville KY
 38.07°N 83.04°W (Elev. 955 ft)
Last Update:
7:28 am EDT Aug 24, 2026
Forecast Valid:
7am EDT Aug 24, 2026-6pm EDT Aug 30, 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