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

Clark Regional Airport (KJVY)

Lat: 38.37°NLon: 85.74°WElev: 476ft.

Light Rain Fog/Mist

77°F

25°C

Humidity 89%
Wind Speed SW 7 mph
Barometer 30.00 in
Dewpoint 73°F (23°C)
Visibility 5.00 mi
Heat Index78°F (26°C)
Last update 19 Aug 11:05 am EDT
Extended Forecast for

Charlestown IN

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly cloudy, with a high near 83. Southwest wind 3 to 6 mph.

    High: 83 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am.  Low around 67. Light and variable wind.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 67 °F

    Chance
    T-storms then
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly before 9am.  Mostly cloudy, with a high near 82. Calm wind becoming north around 5 mph in the afternoon.

    High: 82 °F

    Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 65. Northeast wind 3 to 5 mph.

    Low: 65 °F

    Partly Cloudy

  • Friday

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

    High: 86 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 2pm.  Sunny, with a high near 86.

    High: 86 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 64.

    Low: 64 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 83. Southwest wind 3 to 6 mph.
Tonight
Showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Low around 67. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A 30 percent chance of showers and thunderstorms, mainly before 9am. Mostly cloudy, with a high near 82. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 65. Northeast wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 86. Light north wind.
Friday Night
Mostly clear, with a low around 65.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 86.
Saturday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Charlestown IN
 38.46°N 85.67°W (Elev. 597 ft)
8:06 am EDT Aug 19, 2026
11am EDT Aug 19, 2026-6pm EDT Aug 25, 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