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

Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Hazardous Weather Conditions

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Collin County Regional Airport TX

Heat Advisory August 14, 12:13am until August 14, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 14, 12:13am until August 14, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Overnight

    Low: 77 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 100. Heat index values as high as 104. South wind around 15 mph, with gusts as high as 25 mph.

    High: 100 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 78. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 78 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 100. Heat index values as high as 106. South wind 10 to 15 mph.

    High: 100 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 78. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 101. South southwest wind around 10 mph.

    High: 101 °F

    Hot

  • Sunday Night

    Sunday Night: Clear, with a low around 77. South wind 5 to 10 mph.

    Low: 77 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 102. West southwest wind 5 to 10 mph.

    High: 102 °F

    Hot

Detailed Forecast

Overnight
Clear, with a low around 77. South wind around 15 mph, with gusts as high as 25 mph.
Friday
Sunny and hot, with a high near 100. Heat index values as high as 104. South wind around 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 78. South wind 10 to 15 mph, with gusts as high as 25 mph.
Saturday
Sunny and hot, with a high near 100. Heat index values as high as 106. South wind 10 to 15 mph.
Saturday Night
Mostly clear, with a low around 78. South wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
Sunny and hot, with a high near 101. South southwest wind around 10 mph.
Sunday Night
Clear, with a low around 77. South wind 5 to 10 mph.
Monday
Sunny and hot, with a high near 102. West southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 78. South wind 5 to 10 mph.
Tuesday
Sunny and hot, with a high near 101.
Tuesday Night
Mostly clear, with a low around 79.
Wednesday
Sunny and hot, with a high near 101.
Wednesday Night
Clear, with a low around 78.
Thursday
Sunny and hot, with a high near 101.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Collin County Regional Airport TX
 33.19°N 96.59°W (Elev. 554 ft)
Last Update:
6:12 pm CDT Aug 13, 2026
Forecast Valid:
12am CDT Aug 14, 2026-6pm CDT Aug 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation