Extreme Heat in the Southwest; Severe Weather in the Northern Plains; Heavy Rain in the East

Extreme heat continues across the Southwest as temperatures may top 120 degrees. The heat may expand across the West and south-central U.S. into the middle of the month. Severe thunderstorms capable of severe wind gusts and large hail will be the primary hazards today across the northern Plains into the upper Midwest. Rainfall could be locally heavy across the Eastern U.S. today. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Smith Regional Airport (KFSM)

Lat: 35.33°NLon: 94.37°WElev: 436ft.

Fair

95°F

35°C

Humidity 36%
Wind Speed Calm
Barometer 29.87 in (1010.8 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 3 Aug 4:53 pm CDT
Extended Forecast for

Fort Smith AR

  • Tonight

    Tonight: Mostly clear, with a low around 72. East wind around 5 mph.

    Low: 72 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 98. Heat index values as high as 103. East wind around 5 mph.

    High: 98 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76. East wind 5 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 100. Heat index values as high as 106. East wind around 5 mph becoming south in the afternoon.

    High: 100 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm  after midnight.

    Low: 77 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 98. Calm wind becoming south around 5 mph in the afternoon.

    High: 98 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am.  Partly cloudy, with a low around 76. South wind around 5 mph becoming calm  in the evening.

    Low: 76 °F

    Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 95. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 95 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 75. Southeast wind around 5 mph becoming calm  in the evening.

    Low: 75 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 72. East wind around 5 mph.
Tuesday
Sunny, with a high near 98. Heat index values as high as 103. East wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 76. East wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 100. Heat index values as high as 106. East wind around 5 mph becoming south in the afternoon.
Wednesday Night
Partly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm after midnight.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 98. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 76. South wind around 5 mph becoming calm in the evening.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95. Calm wind becoming southeast around 5 mph in the afternoon.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. Southeast wind around 5 mph becoming calm in the evening.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 76. South wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 96. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 76. South wind around 5 mph becoming calm after midnight.
Monday
Sunny, with a high near 97. Calm wind becoming south around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Fort Smith AR
 35.38°N 94.39°W
5:50 pm CDT Aug 3, 2026
6pm CDT Aug 3, 2026-6pm CDT Aug 10, 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