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

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Fair and Breezy

90°F

32°C

Humidity 62%
Wind Speed S 21 G 30 mph
Barometer 29.71 in (1005.5 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index101°F (38°C)
Last update 21 Jun 5:53 pm CDT
Extended Forecast for

Allen TXSimilar City Names

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm after 4am. Increasing clouds, with a low around 75. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    Low: 75 °F

    Partly Cloudy
    then Showers
    Likely

  • Monday

    Monday: Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 92. Heat index values as high as 97. South wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms between 10pm and 1am. Partly cloudy, with a low around 77. South wind 10 to 15 mph. Chance of precipitation is 20%.

    Low: 77 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 93. Heat index values as high as 102. South wind around 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 78. South wind around 10 mph.

    Low: 78 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 96. South wind around 10 mph.

    High: 96 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 76. South wind around 10 mph.

    Low: 76 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 95. South wind 10 to 15 mph.

    High: 95 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77. South wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm after 4am. Increasing clouds, with a low around 75. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Monday
Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 92. Heat index values as high as 97. South wind around 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A slight chance of showers and thunderstorms between 10pm and 1am. Partly cloudy, with a low around 77. South wind 10 to 15 mph. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 93. Heat index values as high as 102. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 78. South wind around 10 mph.
Wednesday
Mostly sunny, with a high near 96. South wind around 10 mph.
Wednesday Night
Partly cloudy, with a low around 76. South wind around 10 mph.
Thursday
Mostly sunny, with a high near 95. South wind 10 to 15 mph.
Thursday Night
Mostly clear, with a low around 77. South wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 95.
Friday Night
Partly cloudy, with a low around 77.
Saturday
Mostly sunny, with a high near 96.
Saturday Night
Mostly clear, with a low around 78.
Sunday
Mostly sunny, with a high near 97. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
Allen TXSimilar City Names
 33.12°N 96.67°W (Elev. 653 ft)
Last Update:
6:11 pm CDT Jun 21, 2026
Forecast Valid:
6pm CDT Jun 21, 2026-6pm CDT Jun 28, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation