National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Smith Regional Airport (KFSM)

Lat: 35.33°NLon: 94.37°WElev: 436ft.

Fair

89°F

32°C

Humidity 50%
Wind Speed S 6 mph
Barometer 29.86 in (1010.5 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 12 Aug 10:53 pm CDT
Extended Forecast for

Fort Smith AR

Heat Advisory August 12, 11:21pm until August 16, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 12, 11:21pm until August 16, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • Tonight

    Low: 81 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 102. Heat index values as high as 107. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 102 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 81. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 81 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 103. Heat index values as high as 106. Southwest wind 5 to 10 mph.

    High: 103 °F

    Hot

  • Friday Night

    Friday Night: Clear, with a low around 78. South wind 5 to 10 mph.

    Low: 78 °F

    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 103. Light south wind becoming southwest 5 to 10 mph in the morning.

    High: 103 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 79. South wind 5 to 10 mph becoming light and variable after midnight.

    Low: 79 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 104. Light west wind becoming southwest 5 to 10 mph in the morning.

    High: 104 °F

    Hot

Detailed Forecast

Tonight
Mostly clear, with a low around 81. South wind around 5 mph.
Thursday
Sunny and hot, with a high near 102. Heat index values as high as 107. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 81. South wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Sunny and hot, with a high near 103. Heat index values as high as 106. Southwest wind 5 to 10 mph.
Friday Night
Clear, with a low around 78. South wind 5 to 10 mph.
Saturday
Sunny and hot, with a high near 103. Light south wind becoming southwest 5 to 10 mph in the morning.
Saturday Night
Clear, with a low around 79. South wind 5 to 10 mph becoming light and variable after midnight.
Sunday
Sunny and hot, with a high near 104. Light west wind becoming southwest 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 79. Southwest wind around 5 mph becoming calm in the evening.
Monday
Sunny and hot, with a high near 104. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 78. West wind around 5 mph becoming calm in the evening.
Tuesday
Sunny and hot, with a high near 103. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 79. South wind around 5 mph becoming calm after midnight.
Wednesday
Sunny and hot, with a high near 102. Light and variable wind becoming southwest 5 to 10 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fort Smith AR
 35.38°N 94.39°W
Last Update:
10:50 pm CDT Aug 12, 2026
Forecast Valid:
11pm CDT Aug 12, 2026-6pm CDT Aug 19, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation