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

Fort Smith Regional Airport (KFSM)

Lat: 35.33°NLon: 94.37°WElev: 436ft.

Fair

36°F

2°C

Humidity 76%
Wind Speed E 7 mph
Barometer 30.27 in (1025.2 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 14 Nov 7:53 am CST
Extended Forecast for

Mountainburg AR

  • Today

    Today: Widespread frost before 9am. Otherwise, mostly sunny, with a high near 53. Southeast wind 5 to 10 mph.

    High: 53 °F

    Frost then
    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 3am. Mostly cloudy, with a low around 39. East wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after 3pm. Increasing clouds, with a high near 50. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 59. Calm wind becoming southeast around 5 mph.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 37. Calm wind.

    Low: 37 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 61. Light east wind becoming southeast 5 to 10 mph in the morning.

    High: 61 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 41. Southeast wind 5 to 10 mph.

    Low: 41 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 64. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 64 °F

    Sunny

Detailed Forecast

Today
Widespread frost before 9am. Otherwise, mostly sunny, with a high near 53. Southeast wind 5 to 10 mph.
Tonight
A 30 percent chance of showers, mainly after 3am. Mostly cloudy, with a low around 39. East wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Showers likely, mainly after 3pm. Increasing clouds, with a high near 50. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A 20 percent chance of showers before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 38. Calm wind.
Monday
Sunny, with a high near 59. Calm wind becoming southeast around 5 mph.
Monday Night
Clear, with a low around 37. Calm wind.
Tuesday
Sunny, with a high near 61. Light east wind becoming southeast 5 to 10 mph in the morning.
Tuesday Night
Clear, with a low around 41. Southeast wind 5 to 10 mph.
Wednesday
Sunny, with a high near 64. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 50. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
A 20 percent chance of showers. Mostly cloudy, with a high near 65. Southeast wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 53. Southeast wind around 5 mph.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 69. Southeast wind 5 to 10 mph, with gusts as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mountainburg AR
 35.65°N 94.17°W
Last Update:
5:50 am CST Nov 14, 2026
Forecast Valid:
8am CST Nov 14, 2026-6pm CST Nov 20, 2026
 
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Additional Resources

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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