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

McAlester, McAlester Regional Airport (KMLC)

Lat: 34.88°NLon: 95.78°WElev: 768ft.

76°F

24°C

Humidity 88%
Wind Speed Vrbl 3 mph
Barometer 29.66 in (1003.2 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 18 Jun 3:53 am CDT
Extended Forecast for

3 Miles S Clayton OK

Heat Advisory June 18, 01:00pm until June 18, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 92. Heat index values as high as 101. South wind around 5 mph becoming east in the afternoon.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Increasing clouds, with a low around 73. Northeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 73 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Juneteenth

    Juneteenth: Showers and thunderstorms likely, mainly before 1pm. Cloudy, with a high near 84. Northeast wind around 5 mph becoming southeast in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    T-storms
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 72. Southeast wind around 5 mph. Chance of precipitation is 60%.

    Low: 72 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. South wind around 5 mph. Chance of precipitation is 60%.

    High: 85 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 74. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 89 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 71. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

    Low: 71 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. South wind around 5 mph. Chance of precipitation is 60%.

    High: 82 °F

    Showers
    Likely

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 92. Heat index values as high as 101. South wind around 5 mph becoming east in the afternoon.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Increasing clouds, with a low around 73. Northeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Juneteenth
Showers and thunderstorms likely, mainly before 1pm. Cloudy, with a high near 84. Northeast wind around 5 mph becoming southeast in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Mostly cloudy, with a low around 72. Southeast wind around 5 mph. Chance of precipitation is 60%.
Saturday
A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. South wind around 5 mph. Chance of precipitation is 60%.
Saturday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 74. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 71. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Monday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 82. South wind around 5 mph. Chance of precipitation is 60%.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 70%.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 81. Calm wind becoming south around 5 mph. Chance of precipitation is 60%.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70. South wind around 5 mph becoming calm.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Calm wind becoming south around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Clayton OK
 34.55°N 95.36°W
Last Update:
2:50 am CDT Jun 18, 2026
Forecast Valid:
4am 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