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

81°F

27°C

Humidity 79%
Wind Speed E 3 mph
Barometer 30.19 in (1021.7 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 17 Sep 1:53 am CDT
Extended Forecast for

2 Miles WNW Altus AR

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

  • Overnight

    Overnight: Clear, with a low around 73. East wind around 5 mph.

    Low: 73 °F

    Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 100. Heat index values as high as 106. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 100 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. East wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Mostly Clear

  • Friday

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

    High: 100 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. Southeast wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 100. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 100 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 71. South wind around 5 mph becoming calm in the evening.

    Low: 71 °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 72. South wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 73. East wind around 5 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 100. Heat index values as high as 106. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 73. East wind around 5 mph becoming calm in the evening.
Friday
Sunny and hot, with a high near 100. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 72. Southeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny and hot, with a high near 100. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 71. 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 72. South wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly 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 69. Northeast wind around 5 mph.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. East wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 68. Northeast wind 5 to 10 mph.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. East wind 5 to 10 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Altus AR
 35.47°N 93.79°W
Last Update:
1:50 am CDT Sep 17, 2026
Forecast Valid:
2am CDT Sep 17, 2026-6pm CDT Sep 23, 2026
 
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Additional Resources

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Chance of Precipitation