Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Glasgow, Glasgow Municipal Airport (KGLW)

Lat: 37.03°NLon: 85.95°WElev: 715ft.

Partly Cloudy

76°F

24°C

Humidity 77%
Wind Speed Calm
Barometer 30.04 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 19 Aug 8:35 am CDT
Extended Forecast for

3 Miles SW Mammoth Cave KY

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 87. Light and variable wind.

    High: 87 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am.  Low around 69. Calm wind.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Chance
    T-storms then
    Showers

  • Thursday

    Thursday: Showers and thunderstorms likely before 11am, then a slight chance of showers and thunderstorms after noon.  Partly sunny, with a high near 84. Light and variable wind.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 1am.  Partly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Slight Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 86. Light and variable wind.

    High: 86 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 87. Light and variable wind.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Low around 69. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers and thunderstorms likely before 11am, then a slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 84. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 68. Calm wind.
Friday
Mostly sunny, with a high near 86. Light and variable wind.
Friday Night
Mostly clear, with a low around 66.
Saturday
Sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 66.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 63.
Monday
Mostly sunny, with a high near 85.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 65.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Mammoth Cave KY
 37.17°N 86.15°W (Elev. 702 ft)
7:06 am CDT Aug 19, 2026
8am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

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