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Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. Read More >

Hazardous Weather Conditions

Current conditions at

McAlester, McAlester Regional Airport (KMLC)

Lat: 34.88°NLon: 95.78°WElev: 768ft.

Fair

104°F

40°C

Humidity 24%
Wind Speed Vrbl 3 mph
Barometer 29.89 in (1010.9 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 18 Aug 6:53 pm CDT
Extended Forecast for

Kosoma OK

Extreme Heat Warning until August 19, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning until August 19, 09:00pm

    NOW until 9:00pm Wed

    Extreme Heat Warning

  • Tonight

    Low: 78 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 106. Heat index values as high as 109. Calm wind becoming southwest around 5 mph in the morning.

    High: 106 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 78. South wind around 5 mph becoming calm in the evening.

    Low: 78 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 105. Heat index values as high as 110. Calm wind becoming west around 5 mph.

    High: 105 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Partly Cloudy

  • Friday

    Friday: Sunny and hot, with a high near 103. Calm wind becoming east around 5 mph.

    High: 103 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 103. Calm wind becoming south around 5 mph.

    High: 103 °F

    Hot

Detailed Forecast

Tonight
Clear, with a low around 78. South wind around 5 mph becoming calm.
Wednesday
Sunny and hot, with a high near 106. Heat index values as high as 109. Calm wind becoming southwest around 5 mph in the morning.
Wednesday Night
Mostly clear, with a low around 78. South wind around 5 mph becoming calm in the evening.
Thursday
Sunny and hot, with a high near 105. Heat index values as high as 110. Calm wind becoming west around 5 mph.
Thursday Night
Partly cloudy, with a low around 74. Calm wind.
Friday
Sunny and hot, with a high near 103. Calm wind becoming east around 5 mph.
Friday Night
Mostly clear, with a low around 73. Calm wind.
Saturday
Sunny and hot, with a high near 103. Calm wind becoming south around 5 mph.
Saturday Night
Mostly clear, with a low around 74. Calm wind.
Sunday
Sunny and hot, with a high near 103. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 76. South wind around 5 mph.
Monday
Sunny and hot, with a high near 104. Southwest wind around 5 mph.
Monday Night
Mostly clear, with a low around 77. South wind around 5 mph.
Tuesday
Sunny and hot, with a high near 103. Calm wind becoming southwest around 5 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Kosoma OK
 34.35°N 95.6°W
Last Update:
6:50 pm CDT Aug 18, 2026
Forecast Valid:
7pm CDT Aug 18, 2026-6pm CDT Aug 25, 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