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

97°F

36°C

Humidity 43%
Wind Speed S 8 mph
Barometer 29.99 in (1015.2 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 1 Sep 4:56 pm CDT
Extended Forecast for

Mammoth Spring AR

  • Tonight

    Tonight: Mostly clear, with a low around 73. South wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98. Heat index values as high as 105. Calm wind becoming south around 5 mph in the afternoon.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 73. South wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 98. Heat index values as high as 106. Calm wind becoming south around 5 mph in the afternoon.

    High: 98 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 73. South wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 98. Calm wind becoming south southeast around 5 mph in the afternoon.

    High: 98 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 98. Calm wind.

    High: 98 °F

    Hot

  • Saturday Night

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

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 73. South wind around 5 mph becoming calm in the evening.
Wednesday
Sunny and hot, with a high near 98. Heat index values as high as 105. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 73. South wind around 5 mph becoming calm in the evening.
Thursday
Sunny and hot, with a high near 98. Heat index values as high as 106. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Clear, with a low around 73. South wind around 5 mph becoming calm in the evening.
Friday
Sunny and hot, with a high near 98. Calm wind becoming south southeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 72. Calm wind.
Saturday
Sunny and hot, with a high near 98. Calm wind.
Saturday Night
Mostly clear, with a low around 71. Calm wind.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 98.
Sunday Night
Partly cloudy, with a low around 70.
Labor Day
Sunny, with a high near 96.
Monday Night
Mostly clear, with a low around 68.
Tuesday
Sunny, with a high near 95.
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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:
4:35 pm CDT Sep 1, 2026
Forecast Valid:
5pm CDT Sep 1, 2026-6pm CDT Sep 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation