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

Tropical Storm Edouard to Impact the Northwest Gulf Coast; Heat Expands Eastward

Tropical Storm Edouard will bring tropical storm to hurricane conditions, heavy rainfall, flash and some river flooding, and storm surge to portions of Upper Texas and southwestern Louisiana coasts into Wednesday. Severe thunderstorms are possible in the Central Plains and Mid-Atlantic. Hot and humid conditions will expand from the Central Plains into the Ohio Valley and Mid-Atlantic. Read More >

Hazardous Weather Conditions

Current conditions at

McKinney - McKinney National Airport (KTKI)

Lat: 33.18°NLon: 96.59°WElev: 584ft.

Partly Cloudy

94°F

34°C

Humidity 46%
Wind Speed SE 7 mph
Barometer 30.04 in (1016.5 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 1 Sep 11:53 am CDT
Extended Forecast for

Wylie TX

  • This Afternoon

    This Afternoon: A slight chance of showers, with thunderstorms also possible after 1pm. Sunny and hot, with a high near 100. Heat index values as high as 104. East wind 5 to 10 mph. Chance of precipitation is 10%.

    High: 100 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms. Mostly clear, with a low around 77. South southeast wind around 5 mph. Chance of precipitation is 10%.

    Low: 77 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. Heat index values as high as 103. East southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 96 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 75. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 75 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 93 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 10 percent chance of showers after 1am. Partly cloudy, with a low around 75. South southeast wind 5 to 10 mph.

    Low: 75 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A 10 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. South wind 5 to 10 mph.

    High: 95 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 76. South southeast wind around 5 mph.

    Low: 76 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 96. Calm wind becoming south around 5 mph in the afternoon.

    High: 96 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers, with thunderstorms also possible after 1pm. Sunny and hot, with a high near 100. Heat index values as high as 104. East wind 5 to 10 mph. Chance of precipitation is 10%.
Tonight
A slight chance of showers and thunderstorms. Mostly clear, with a low around 77. South southeast wind around 5 mph. Chance of precipitation is 10%.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. Heat index values as high as 103. East southeast wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Wednesday Night
A slight chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 75. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 93. South southeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday Night
A 10 percent chance of showers after 1am. Partly cloudy, with a low around 75. South southeast wind 5 to 10 mph.
Friday
A 10 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. South wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 76. South southeast wind around 5 mph.
Saturday
Sunny, with a high near 96. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 76.
Sunday
Sunny, with a high near 97.
Sunday Night
Mostly clear, with a low around 77.
Labor Day
Sunny, with a high near 98.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wylie TX
 33.05°N 96.51°W (Elev. 499 ft)
Last Update:
6:06 am CDT Sep 1, 2026
Forecast Valid:
12pm CDT Sep 1, 2026-6pm CDT Sep 7, 2026
 
Forecast Discussion
 
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Additional Resources

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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