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Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

89°F

32°C

Humidity 55%
Wind Speed S 10 mph
Barometer 29.94 in (1013.0 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 7 Sep 10:53 pm CDT
Extended Forecast for

Mc Kinney TX

Heat Advisory September 7, 11:50pm until September 8, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 7, 11:50pm until September 8, 08:00pm

    NOW until 8:00pm Tue

    Heat Advisory

  • Tonight

    Low: 80 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 10 percent chance of showers and thunderstorms after 4pm.  Sunny and hot, with a high near 100. Heat index values as high as 106. South southeast wind 5 to 10 mph.

    High: 100 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 79. South southeast wind 5 to 10 mph.

    Low: 79 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 101. Heat index values as high as 106. South wind 5 to 10 mph.

    High: 101 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 79. South southeast wind 5 to 10 mph.

    Low: 79 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 98. South wind around 5 mph.

    High: 98 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 78. East southeast wind 5 to 10 mph.

    Low: 78 °F

    Partly Cloudy

  • Friday

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

    High: 99 °F

    Hot

Detailed Forecast

Tonight
Mostly clear, with a low around 80. South southeast wind around 5 mph.
Tuesday
A 10 percent chance of showers and thunderstorms after 4pm. Sunny and hot, with a high near 100. Heat index values as high as 106. South southeast wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 79. South southeast wind 5 to 10 mph.
Wednesday
Sunny and hot, with a high near 101. Heat index values as high as 106. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 79. South southeast wind 5 to 10 mph.
Thursday
Sunny, with a high near 98. South wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 78. East southeast wind 5 to 10 mph.
Friday
Sunny and hot, with a high near 99. South wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 78. South southeast wind around 10 mph.
Saturday
Sunny and hot, with a high near 100.
Saturday Night
Mostly clear, with a low around 77.
Sunday
Sunny, with a high near 98.
Sunday Night
Mostly clear, with a low around 76.
Monday
Sunny, with a high near 97.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Mc Kinney TX
 33.21°N 96.68°W (Elev. 554 ft)
6:11 pm CDT Sep 7, 2026
11pm CDT Sep 7, 2026-6pm CDT Sep 14, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database