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

Heavy Rain From the Plains to the Northeast; Heat Wave Begins

Severe thunderstorms and heavy rainfall are likely across parts of the Northeast, portions of the northern and central Plains, and the Ohio Valley. Portions of northeast Missouri and central Illinois could experience locally significant flash flooding. Dangerously hot conditions are expected in the Central Plains, Lower and Middle Mississippi Valley, and Southeast. Read More >

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

A Few Clouds

95°F

35°C

Humidity 49%
Wind Speed S 18 G 28 mph
Barometer 29.99 in (1014.5 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 20 Jul 2:53 pm CDT
Extended Forecast for

Mc Kinney TX

  • This Afternoon

    This Afternoon: Sunny, with a high near 97. Heat index values as high as 105. South wind around 15 mph, with gusts as high as 25 mph.

    High: 97 °F

    Sunny

  • Tonight

    Tonight: 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

  • Monday

    Monday: Sunny and hot, with a high near 99. Heat index values as high as 102. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 99 °F

    Hot

  • Monday Night

    Monday Night: Clear, with a low around 77. South wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 98. South wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 98 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 77. South wind 5 to 15 mph.

    Low: 77 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 98. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 98 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. South wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100. South wind 5 to 10 mph.

    High: 100 °F

    Hot

Detailed Forecast

This Afternoon
Sunny, with a high near 97. Heat index values as high as 105. South wind around 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 78. South wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
Sunny and hot, with a high near 99. Heat index values as high as 102. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Clear, with a low around 77. South wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 98. South wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 77. South wind 5 to 15 mph.
Wednesday
Mostly sunny, with a high near 98. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 77. South wind 5 to 10 mph.
Thursday
Sunny and hot, with a high near 100. South wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 77.
Friday
Sunny and hot, with a high near 100.
Friday Night
Mostly clear, with a low around 78.
Saturday
Sunny, with a high near 98.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mc Kinney TX
 33.21°N 96.68°W (Elev. 554 ft)
Last Update:
12:24 pm CDT Jul 20, 2025
Forecast Valid:
3pm CDT Jul 20, 2025-6pm CDT Jul 26, 2025
 
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