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Hazardous Weather Conditions

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair

87°F

31°C

Humidity 57%
Wind Speed S 13 mph
Barometer 29.97 in (1013.8 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 14 Sep 11:53 pm CDT
Extended Forecast for

Mc Kinney TX

Heat Advisory September 15, 12:20am until September 15, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 15, 12:20am until September 15, 08:00pm

    NOW until 8:00pm Tue

    Heat Advisory

  • Overnight

    Low: 79 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. Heat index values as high as 104. South southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 101 °F

    Hot

  • Tuesday Night

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

    Low: 78 °F

    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. Southeast wind 5 to 10 mph.

    Low: 78 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 98. South southeast wind 5 to 10 mph.

    High: 98 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 76. East southeast wind 5 to 10 mph becoming light south after midnight.

    Low: 76 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 98. Light south wind becoming south southeast 5 to 10 mph in the afternoon.

    High: 98 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a low around 79. South wind around 10 mph.
Tuesday
Sunny and hot, with a high near 101. Heat index values as high as 104. South southwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
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. Southeast wind 5 to 10 mph.
Thursday
Sunny, with a high near 98. South southeast wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 76. East southeast wind 5 to 10 mph becoming light south after midnight.
Friday
Sunny, with a high near 98. Light south wind becoming south southeast 5 to 10 mph in the afternoon.
Friday Night
Mostly clear, with a low around 75. South southeast wind around 5 mph.
Saturday
Sunny, with a high near 98.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Mostly sunny, with a high near 96.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 73.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mc Kinney TX
 33.21°N 96.65°W (Elev. 600 ft)
Last Update:
11:11 pm CDT Sep 14, 2026
Forecast Valid:
12am CDT Sep 15, 2026-6pm CDT Sep 21, 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