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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Smith Regional Airport (KFSM)

Lat: 35.33°NLon: 94.37°WElev: 436ft.

Fair

79°F

26°C

Humidity 85%
Wind Speed Calm
Barometer 30.23 in (1023.1 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 17 Sep 7:53 am CDT
Extended Forecast for

2 Miles NNE Fort Smith AR

Heat Advisory September 17, 12:00pm until September 17, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 101. Heat index values as high as 106. Calm wind.

    High: 101 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 76. East wind around 5 mph becoming calm.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 101. Heat index values as high as 104. Calm wind becoming south around 5 mph.

    High: 101 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. South wind around 5 mph becoming calm.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 101. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 101 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75. South wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 100. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 100 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 75. South wind around 5 mph becoming calm.

    Low: 75 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 96. Calm wind becoming west around 5 mph in the afternoon.

    High: 96 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 101. Heat index values as high as 106. Calm wind.
Tonight
Mostly clear, with a low around 76. East wind around 5 mph becoming calm.
Friday
Sunny and hot, with a high near 101. Heat index values as high as 104. Calm wind becoming south around 5 mph.
Friday Night
Mostly clear, with a low around 75. South wind around 5 mph becoming calm.
Saturday
Sunny and hot, with a high near 101. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 75. South wind around 5 mph becoming calm in the evening.
Sunday
Sunny and hot, with a high near 100. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 75. South wind around 5 mph becoming calm.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 96. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. Northeast wind around 5 mph.
Tuesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. Northeast wind around 5 mph becoming calm.
Tuesday Night
Partly cloudy, with a low around 71. Northeast wind around 5 mph.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. East wind around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Fort Smith AR
 35.4°N 94.37°W
Last Update:
7:50 am CDT Sep 17, 2026
Forecast Valid:
8am CDT Sep 17, 2026-6pm CDT Sep 23, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation