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

81°F

27°C

Humidity 47%
Wind Speed S 15 mph
Barometer 29.92 in (1012.9 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 3 Mar 5:53 pm CST
Extended Forecast for

Mc Kinney TX

  • Tonight

    Tonight: Mostly cloudy, with a low around 67. South southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 77. South wind 10 to 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: 77 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 9pm, then showers and thunderstorms likely, mainly between 9pm and midnight. Mostly cloudy, with a low around 65. South wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 79 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers and possibly a thunderstorm after noon. High near 79. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.

    High: 79 °F

    Chance
    Showers then
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 62. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 62 °F

    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. South wind around 10 mph becoming north in the afternoon. Chance of precipitation is 70%.

    High: 72 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 56. North wind 5 to 10 mph. Chance of precipitation is 60%.

    Low: 56 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 67. South southeast wind around 10 mph, with gusts as high as 20 mph.
Wednesday
A slight chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 77. South wind 10 to 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.
Wednesday Night
Showers likely and possibly a thunderstorm before 9pm, then showers and thunderstorms likely, mainly between 9pm and midnight. Mostly cloudy, with a low around 65. South wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. South wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday
A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers and possibly a thunderstorm after noon. High near 79. South wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Friday Night
Showers and possibly a thunderstorm. Low around 62. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 72. South wind around 10 mph becoming north in the afternoon. Chance of precipitation is 70%.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 56. North wind 5 to 10 mph. Chance of precipitation is 60%.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 72.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 63.
Tuesday
A 50 percent chance of showers. Mostly cloudy, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Mc Kinney TX
 33.19°N 96.65°W (Elev. 545 ft)
Last Update:
5:14 pm CST Mar 3, 2026
Forecast Valid:
6pm CST Mar 3, 2026-6pm CDT Mar 10, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation