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

75°F

24°C

Humidity 82%
Wind Speed E 6 mph
Barometer 29.92 in (1013.1 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 20 Jun 10:56 pm CDT
Extended Forecast for

Mammoth Spring AR

  • Tonight

    Tonight: Mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear

  • Sunday

    Sunday: A slight chance of showers and thunderstorms between 10am and 2pm. Partly sunny, with a high near 88. Heat index values as high as 98. South southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 71. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 71 °F

    Chance
    Showers then
    Showers

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 83. South southwest wind around 5 mph becoming west in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63. North northeast wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. Calm wind.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 83. Calm wind becoming east around 5 mph.

    High: 83 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 67. Calm wind.
Sunday
A slight chance of showers and thunderstorms between 10am and 2pm. Partly sunny, with a high near 88. Heat index values as high as 98. South southwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Sunday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 71. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 83. South southwest wind around 5 mph becoming west in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 60%.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63. North northeast wind around 5 mph becoming calm in the evening.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. Calm wind.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 83. Calm wind becoming east around 5 mph.
Wednesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 63. Calm wind.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
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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:
10:35 pm CDT Jun 20, 2026
Forecast Valid:
11pm CDT Jun 20, 2026-6pm CDT Jun 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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