Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.

Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >

Current conditions at

Clyde A. Thomas Regional Airport (KSYM)

Lat: 38.22°NLon: 83.59°WElev: 1047ft.

Light Rain

81°F

27°C

Humidity 84%
Wind Speed NW 6 mph
Barometer 30.27 in
Dewpoint 75°F (24°C)
Visibility 7.00 mi
Heat Index87°F (31°C)
Last update 16 Sep 7:15 pm EDT
Extended Forecast for

Denniston KY

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm.  Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm.  Sunny and hot, with a high near 90. Heat index values as high as 96. Light and variable wind.  Chance of precipitation is 20%.

    High: 90 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers before 3am, then a slight chance of showers after 4am.  Partly cloudy, with a low around 70. Calm wind.  Chance of precipitation is 20%.

    Low: 70 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 84. Light north wind.

    High: 84 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 66. Light east wind.

    Low: 66 °F

    Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible 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

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 68.

    Low: 68 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 71. Calm wind.
Thursday
A slight chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm. Sunny and hot, with a high near 90. Heat index values as high as 96. Light and variable wind. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers before 3am, then a slight chance of showers after 4am. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 20%.
Friday
A 40 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Light north wind.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66. Light east wind.
Saturday
Sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 69.
Sunday
A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 20%.
Sunday Night
A 20 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 68.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
Denniston KY
 37.9°N 83.54°W (Elev. 1142 ft)
6:46 pm EDT Sep 16, 2026
7pm EDT Sep 16, 2026-6pm EDT Sep 23, 2026
 
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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