Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that 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.

Fair

73°F

23°C

Humidity 100%
Wind Speed SW 3 mph
Barometer 29.92 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 20 Aug 12:30 am EDT
Extended Forecast for

Charlestown IN

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 4am.  Mostly cloudy, with a low around 68. Light southwest wind.

    Low: 68 °F

    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 10am.  Partly sunny, with a high near 84. Calm wind becoming north around 5 mph in the afternoon.  Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 66. Light northeast wind.

    Low: 66 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 2pm.  Mostly sunny, with a high near 86. Light and variable wind.

    High: 86 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 65. Light and variable wind.

    Low: 65 °F

    Mostly Clear

  • Saturday

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

    High: 86 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before 8pm.  Mostly clear, with a low around 63.

    Low: 63 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 68. Light southwest wind.
Thursday
A chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 10am. Partly sunny, with a high near 84. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 66. Light northeast wind.
Friday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 86. Light and variable wind.
Friday Night
Mostly clear, with a low around 65. Light and variable wind.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 86.
Saturday Night
A 10 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 63.
Sunday
Sunny, with a high near 84.
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 62.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Charlestown IN
 38.48°N 85.67°W (Elev. 617 ft)
10:35 pm EDT Aug 19, 2026
12am EDT Aug 20, 2026-6pm EDT Aug 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database