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

Tropical Storm and Storm Surge Warnings for the North Carolina Outer Banks; Heat Building in the West

Storm surge flooding and tropical storm conditions are expected in the Outer Banks beginning late Wednesday. Tropical Storm and Storm Surge Warnings are in effect. Tropical storm conditions are possible along the eastern shore of Virginia Thursday. Hurricane Erin will continue to produce life-threatening surf and rip currents along much of the east coast of the U.S. this week. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Smith Regional Airport (KFSM)

Lat: 35.33°NLon: 94.37°WElev: 436ft.

Fair

76°F

24°C

Humidity 85%
Wind Speed W 3 mph
Barometer 29.99 in (1014.7 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 20 Aug 3:53 am CDT
Extended Forecast for

Mountainburg AR

Heat Advisory August 20, 12:00pm until August 20, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 92. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 71. Northeast wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 91. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 69. Northeast wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 93. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 93 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 68. Northeast wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94. Calm wind becoming north around 5 mph in the afternoon.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 70. North wind around 5 mph.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 91. Northeast wind around 5 mph.

    High: 91 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 92. Calm wind becoming northeast around 5 mph in the afternoon.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 71. Northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 91. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 69. Northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 93. Calm wind becoming northeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 68. Northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 94. Calm wind becoming north around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 70. North wind around 5 mph.
Sunday
Mostly sunny, with a high near 91. Northeast wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 67. Northeast wind around 5 mph.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. East wind around 5 mph.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Northeast wind around 5 mph.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 76. Southeast wind 5 to 10 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mountainburg AR
 35.63°N 94.17°W
Last Update:
3:51 am CDT Aug 20, 2025
Forecast Valid:
4am CDT Aug 20, 2025-6pm CDT Aug 26, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation