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Hazardous Weather Conditions

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

79°F

26°C

Humidity 79%
Wind Speed SE 6 mph
Barometer 30.00 in (1015.0 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 13 Sep 6:53 am CDT
Extended Forecast for

McKinney TX

Heat Advisory September 13, 07:49am until September 13, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 13, 07:49am until September 13, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • Today

    High: 100 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 79. South southeast wind 5 to 10 mph.

    Low: 79 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 99. Heat index values as high as 105. South wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 99 °F

    Hot

  • Monday Night

    Monday Night: Clear, with a low around 78. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. South wind around 10 mph, with gusts as high as 20 mph.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 78. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. South wind 5 to 10 mph.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 78. South wind 5 to 10 mph.

    Low: 78 °F

    Mostly Clear

Detailed Forecast

Today
Sunny and hot, with a high near 100. Heat index values as high as 106. South wind 5 to 10 mph.
Tonight
Clear, with a low around 79. South southeast wind 5 to 10 mph.
Monday
Sunny and hot, with a high near 99. Heat index values as high as 105. South wind 5 to 15 mph, with gusts as high as 25 mph.
Monday Night
Clear, with a low around 78. South southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny and hot, with a high near 101. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 78. South southeast wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny and hot, with a high near 99. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 78. South wind 5 to 10 mph.
Thursday
Sunny, with a high near 98. South wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 77.
Friday
Sunny, with a high near 97.
Friday Night
Mostly clear, with a low around 73.
Saturday
Sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
McKinney TX
 33.19°N 96.62°W (Elev. 587 ft)
Last Update:
6:06 am CDT Sep 13, 2026
Forecast Valid:
7am CDT Sep 13, 2026-6pm CDT Sep 19, 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