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

Walnut Ridge Regional Airport (KARG)

Lat: 36.13°NLon: 90.92°WElev: 266ft.

Fair

96°F

36°C

Humidity 44%
Wind Speed S 8 mph
Barometer 30.22 in (1023.1 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 16 Sep 1:56 pm CDT
Extended Forecast for

Mammoth Spring AR

  • This Afternoon

    This Afternoon: Sunny and hot, with a high near 99. Heat index values as high as 106. South wind around 5 mph.

    High: 99 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 71. South southeast wind around 5 mph becoming calm.

    Low: 71 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99. Heat index values as high as 105. Calm wind becoming west southwest around 5 mph.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 99. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 69. Calm wind.

    Low: 69 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 99. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69. South southwest wind around 5 mph becoming calm.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 98. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 98 °F

    Hot

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 99. Heat index values as high as 106. South wind around 5 mph.
Tonight
Clear, with a low around 71. South southeast wind around 5 mph becoming calm.
Thursday
Sunny and hot, with a high near 99. Heat index values as high as 105. Calm wind becoming west southwest around 5 mph.
Thursday Night
Mostly clear, with a low around 71. Calm wind.
Friday
Sunny and hot, with a high near 99. Calm wind becoming south southwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 69. Calm wind.
Saturday
Sunny and hot, with a high near 99. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 69. South southwest wind around 5 mph becoming calm.
Sunday
Sunny and hot, with a high near 98. Calm wind becoming west southwest around 5 mph in the afternoon.
Sunday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 68.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 94.
Monday Night
A 30 percent chance of showers. Partly cloudy, with a low around 64.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mammoth Spring AR
 36.49°N 91.55°W (Elev. 669 ft)
Last Update:
1:53 pm CDT Sep 16, 2026
Forecast Valid:
2pm CDT Sep 16, 2026-6pm CDT Sep 22, 2026
 
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