Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Fort Smith Regional Airport (KFSM)

Lat: 35.33°NLon: 94.37°WElev: 436ft.

A Few Clouds

85°F

29°C

Humidity 65%
Wind Speed NE 8 mph
Barometer 30.02 in (1016.0 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 17 Aug 11:53 pm CDT
Extended Forecast for

2 Miles E Charleston AR

Extreme Heat Warning August 18, 01:00pm until August 19, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  • Overnight

    Overnight: A 50 percent chance of showers and thunderstorms, mainly before 4am.  Partly cloudy, with a low around 73. Calm wind becoming east around 5 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Sunny and hot, with a high near 104. Heat index values as high as 111. East wind around 5 mph becoming calm.

    High: 104 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75. East wind around 5 mph becoming southeast in the evening.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 107. Heat index values as high as 111. Light and variable wind becoming west 5 to 10 mph in the morning.

    High: 107 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 73. Southeast wind 5 to 10 mph becoming light south  after midnight.

    Low: 73 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 102. Calm wind becoming west around 5 mph in the morning.

    High: 102 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 70. North wind around 5 mph becoming east in the evening.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 101. East wind around 5 mph.

    High: 101 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 70. East wind around 5 mph becoming calm  after midnight.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

Overnight
A 50 percent chance of showers and thunderstorms, mainly before 4am. Partly cloudy, with a low around 73. Calm wind becoming east around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Sunny and hot, with a high near 104. Heat index values as high as 111. East wind around 5 mph becoming calm.
Tuesday Night
Mostly clear, with a low around 75. East wind around 5 mph becoming southeast in the evening.
Wednesday
Sunny and hot, with a high near 107. Heat index values as high as 111. Light and variable wind becoming west 5 to 10 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 73. Southeast wind 5 to 10 mph becoming light south after midnight.
Thursday
Mostly sunny and hot, with a high near 102. Calm wind becoming west around 5 mph in the morning.
Thursday Night
Mostly clear, with a low around 70. North wind around 5 mph becoming east in the evening.
Friday
Sunny and hot, with a high near 101. East wind around 5 mph.
Friday Night
Mostly clear, with a low around 70. East wind around 5 mph becoming calm after midnight.
Saturday
Sunny and hot, with a high near 102. Calm wind becoming northeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 71. East wind around 5 mph becoming calm in the evening.
Sunday
Sunny and hot, with a high near 102. East wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 72. Southeast wind 5 to 10 mph.
Monday
Sunny and hot, with a high near 102. East wind around 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Charleston AR
 35.29°N 94.01°W
12:36 am CDT Aug 18, 2026
12am CDT Aug 18, 2026-6pm CDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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