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.

Mostly Cloudy

88°F

31°C

Humidity 63%
Wind Speed S 17 mph
Barometer 30.10 in (1018.4 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 23 Jun 12:53 pm CDT
Extended Forecast for

Allen TX

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly before 4pm. Partly sunny, with a high near 94. Heat index values as high as 104. South wind around 10 mph.

    High: 94 °F

    Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 78. South wind around 10 mph. Chance of precipitation is 20%.

    Low: 78 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 96. Heat index values as high as 102. South southwest wind around 10 mph.

    High: 96 °F

    Slight Chance
    T-storms

  • Wednesday Night

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

    Low: 77 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 96. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 96 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 77. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 77 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 97. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 97 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 78. South wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 78 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 99. South wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 99 °F

    Hot

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly before 4pm. Partly sunny, with a high near 94. Heat index values as high as 104. South wind around 10 mph.
Tonight
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 78. South wind around 10 mph. Chance of precipitation is 20%.
Wednesday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 96. Heat index values as high as 102. South southwest wind around 10 mph.
Wednesday Night
Mostly clear, with a low around 77. South wind around 10 mph.
Thursday
Sunny, with a high near 96. South wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday Night
Partly cloudy, with a low around 77. South wind around 15 mph, with gusts as high as 25 mph.
Friday
Mostly sunny, with a high near 97. South wind 15 to 20 mph, with gusts as high as 30 mph.
Friday Night
Mostly clear, with a low around 78. South wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday
Mostly sunny and hot, with a high near 99. South wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 79.
Sunday
Sunny and hot, with a high near 100.
Sunday Night
Mostly clear, with a low around 80.
Monday
Sunny and hot, with a high near 101.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Allen TX
 33.1°N 96.67°W (Elev. 656 ft)
Last Update:
12:21 pm CDT Jun 23, 2026
Forecast Valid:
1pm CDT Jun 23, 2026-6pm CDT Jun 29, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation