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

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Smith Regional Airport (KFSM)

Lat: 35.33°NLon: 94.37°WElev: 436ft.

Fair

80°F

27°C

Humidity 82%
Wind Speed SE 5 mph
Barometer 29.65 in (1003.5 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 18 Jun 12:53 am CDT
Extended Forecast for

Oak Park AR

  • Overnight

    Overnight: Mostly clear, with a low around 76. Southeast wind around 5 mph becoming calm.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Heat index values as high as 101. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 90 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. Northeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 72 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Juneteenth

    Juneteenth: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly cloudy, with a high near 85. East wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 85 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 72. East wind around 5 mph. Chance of precipitation is 50%.

    Low: 72 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 7am. Partly sunny, with a high near 87. Southeast wind around 5 mph. Chance of precipitation is 60%.

    High: 87 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. Southeast wind around 5 mph.

    Low: 75 °F

    Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 91 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 76. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 76 °F

    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 76. Southeast wind around 5 mph becoming calm.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Heat index values as high as 101. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. Northeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Juneteenth
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly cloudy, with a high near 85. East wind 5 to 10 mph. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Mostly cloudy, with a low around 72. East wind around 5 mph. Chance of precipitation is 50%.
Saturday
Showers likely, with thunderstorms also possible after 7am. Partly sunny, with a high near 87. Southeast wind around 5 mph. Chance of precipitation is 60%.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. Southeast wind around 5 mph.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Showers and possibly a thunderstorm. Low around 76. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Monday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 87. South wind around 5 mph becoming east in the afternoon.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. East wind around 5 mph becoming calm in the evening.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86. Southeast wind around 5 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. East wind around 5 mph becoming calm.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Calm wind becoming southeast around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Oak Park AR
 35.43°N 94.37°W
Last Update:
12:50 am CDT Jun 18, 2026
Forecast Valid:
1am CDT Jun 18, 2026-6pm CDT Jun 24, 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