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

Denning 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 72. Calm wind becoming northeast around 5 mph.

    Low: 72 °F

    Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 101. Heat index values as high as 108. Northeast wind around 5 mph becoming calm.

    High: 101 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

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

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 101. Calm wind becoming south around 5 mph in the afternoon.

    High: 101 °F

    Hot

  • Friday Night

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

    Low: 70 °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 70. South wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 101. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 101 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 72. Calm wind becoming northeast around 5 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 101. Heat index values as high as 108. Northeast wind around 5 mph becoming calm.
Thursday Night
Mostly clear, with a low around 72. Southeast wind around 5 mph becoming calm in the evening.
Friday
Sunny and hot, with a high near 101. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 70. Southeast 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 70. South wind around 5 mph becoming calm in the evening.
Sunday
Sunny and hot, with a high near 101. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 71. 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 97. 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 68. 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 67. East 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:
Denning AR
 35.42°N 93.76°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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High Temperature

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Chance of Precipitation