Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Hazardous Weather Conditions

Current conditions at

Clyde A. Thomas Regional Airport (KSYM)

Lat: 38.22°NLon: 83.59°WElev: 1047ft.

Overcast

70°F

21°C

Humidity 88%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 26 Jul 3:15 am EDT
Extended Forecast for

Denniston KY

  • Overnight

    Overnight: A chance of sprinkles after 5am.  Clear, with a steady temperature around 69. Calm wind.

    Low: 69 °F

    Chance
    Sprinkles

  • Sunday

    Sunday: A chance of sprinkles before 7am.  Partly sunny, with a high near 85. Light and variable wind.

    High: 85 °F

    Chance
    Sprinkles

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 88. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am.  Low around 73. Southwest wind 3 to 6 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Chance
    T-storms then
    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms after 8am.  High near 87. Chance of precipitation is 80%.

    High: 87 °F

    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of sprinkles after 5am. Clear, with a steady temperature around 69. Calm wind.
Sunday
A chance of sprinkles before 7am. Partly sunny, with a high near 85. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 70. Calm wind.
Monday
Mostly sunny, with a high near 88. Calm wind becoming west southwest around 6 mph in the afternoon.
Monday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 73. Southwest wind 3 to 6 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms after 8am. High near 87. Chance of precipitation is 80%.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 64.
Friday
Mostly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 66.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Denniston KY
 37.93°N 83.54°W (Elev. 1142 ft)
3:28 am EDT Jul 26, 2026
3am EDT Jul 26, 2026-6pm EDT Aug 1, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database